Kelen-Tudos Method Research Articles

NMR spectroscopy based configurational and compositional analysis of isobornyl methacrylate—Acrylonitrile copolymers

The authors conducted free radical polymerization using an initiator to synthesize a copolymer of isobornyl methacrylate—Acrylonitrile (I/A). The reactivity ratios of I (r1) and A (r2) monomers were determined as r1 = 1.63 ± 0.14, r2 = 0.61 ± 0.06 for linear KT (Kelen–Tudos) method and r1 = 1.58, r2 = 0.60 for the EVM (Error-in-Variable Method). We interpreted 1H and 13C{1H} NMR spectra of the I/A copolymers using DEPT-135 and 2D HSQC spectra. The α-CH3 carbon in the I-unit was identified and confirmed using a 2D HSQC NMR spectrum, up to the level of triad of compositional and configurational sequences. The CH (C14) and β-CH2 carbon peaks were also identified up to the triad level and higher, respectively. A 2D TOCSY spectrum revealed geminal and vicinal interactions within various CH and β-CH2 protons. A 2D HMBC NMR spectrum provided a complete assignment of the coupling between nitrile, carbonyl, and quaternary carbons with CH3 and CH2 protons.

Novel cationic copolymeric surfactants bearing imidazole moiety as petro-dispersing / petro-collecting agents: Synthesis, surface activity and characterization

Novel cationic copolymeric surfactants were designed and synthesized by the quaternization of the copolymer. The synthesized route passes through a two-step reaction, initially including the copolymerization of methacrylic acid (MAA) with 1-vinylimidazole (VIM), followed by the quaternization of the nitrogen atom in imidazole ring present in the obtained poly(VIM-co- MAA) (AI1-5)with different molar ratios, with methyl- and ethyl iodide, respectively to form AISM1-5 and AISE1-5. The chemical structure of the prepared copolymers and cationic polymeric surfactants was confirmed using different spectroscopic techniques such as FT-IR and 1H NMR. The surface-active properties of the synthesized cationic polymeric surfactants were examined. Finema-Ross (F-R) and Kelen-Tudos (K-T) methods were studied from the elemental analysis data, which included the evaluation of the nitrogen content (N%) in prepared copolymers. The monomer reactivity ratios are r1 = 0.157; r2 = 0.966 by F-R and r1 = 0.122; r2 = 0.995) by K-T methods that showed the value of r1r2 is less than the unity (0.152), which indicates the random distribution. The results showed that in sea water, AISE4 is the most distinctive as a petro-dispersant in undiluted form. As well, in diluted and undiluted forms of AISE4, the best petro-collecting capacity is observed on the surface of distilled water.

Synthesis, Characterization and Antimicrobial studies of N-cyclohexyl acrylamide and 7-methacryloyloxy-4-methyl coumarin copolymers

A series of copolymers of N-cyclohexylacrylamide (NCA) and 7-methacryloyloxy-4-methyl coumarin (MACU) were prepared by free radical polymerization using AIBN as initiator in DMF. The copolymer compositions were determined by 1HNMR analysis. The reactivity ratios were determined by linear methods like Finemann-Ross and Kelen-Tudos methods. The value of r1 is less than r 2. So MACU is found to have higher reactivity than NCA. Mean sequence lengths of copolymers were calculated from r1 and r2 values. The product of r1. r2 = 1.1, which is greater than 1 indicates that the copolymers are at random distribution of monomeric unit in the copolymer chain. Thermal studies indicates that the Tg values are higher than the homopolymers of NCA. Antimicrobial studies showed that the copolymers are active against both Bacteria and fungi. However, these copolymers showed excellent antibacterial activity

Acrylate polymers of triazine containing chalcone moiety: Synthesis, characterization, reactivity ratio and photocrosslinking studies

Acrylate monomer ((4-(3-(4-((4-(4-(3-(2,4-dichlorophenyl)-3-oxoprop-1-en-1-yl)phenoxy)-6-((4-nitrophenyl)amino)-1,3,5-triazin-2-yl)oxy)phenyl)-3-oxoprop-1-en-1-yl)phenyl acrylate (DTCP) is prepared and used to prepare poly (DTCP) and its copolymer poly (DTCP-co-HEA) and poly (DTCP-co-S) using 2-hydroxyethyl acrylate (HEA), styrene (S) by solution polymerization technique. Infrared spectroscopy (FT-IR), proton Nucleharmar Magnetic Resonance (1H NMR), and UV-Visible techniques are used to identify the synthesized polymers. Gel permeation chromatography method is used to determine the polymer’s weight average molecular weight, which is found to be around 10000 g/mol. According to the Thermo Gravimetric Analysis study, the synthesized polymers go through single stage decomposition centered at 340°C. The polymer reactivity ratio is found using well known Finemann-Ross (F-R), Kelen-Tudos (K-T), and extended Kelen-Tudos (ex.K-T) methods. The reactivity of the commercial monomers (HEA or S) is found to be higher than that of synthesized monomer, according to our findings. The photocrosslinking rate of the synthesized polymers is determined using a UV visible spectroscopic method and found to be high for polymer having HEA unit.

Synthesis and evaluation of new cationic polymeric surfactant based on N-phthalimidomethyl methacrylate

In our previous work N-phthalimidomethyl methacrylate (NPMMA) monomer was prepared through the reaction of N-hydroxymethyl phthalimide with methacrylic acid in the presence of N, N-dicyclohexylcarbodiimide (DCCI) as a condensing agent. Then a new series of copolymers containing imidazole have been synthesized through the reaction of NPMMA monomer with 1-vinylimidazole (VIM) in the presence of benzoyl peroxide as initiator. The copolymer composition was determined by 1H NMR spectroscopy and the values of monomer reactivity ratio (r1= 0.756, r2= 1.033, and r1r2= 0.781) were calculated through Fineman Ross and Kelen-Tudos methods. Conversion of copolymers to surfactants was achieved through quaternization of the imidazole nitrogen with dimethyl sulphate. The chemical structure of the produced monomer, copolymers, co-polymeric surfactants was confirmed by spectroscopic tools. The surface properties included surface tension, foaming power, emulsion stability, critical micelle concentration (CMC) have been measured in aqueous medium by traditional procedures. Also the different air/ water interface parameters including effectiveness (πcmc), efficiency (Pc20), maximum surface excess (Γmax) and minimum surface area (Amin) were also recorded. Moreover, the biodegradability for these cationic surfactants has been investigated and their D % was ranged from 67 to 100 %.

Microstructural study on MMA/1‐hexene copolymers made by mononuclear and dinuclear α‐diimine nickel (II) catalysts

Homogenous catalytic homopolymerization and copolymerization of 1‐hexene (H) with methyl methacrylate (MMA) were carried out in presence of two different types of mononuclear (MNC1 and MNC2) and dinuclear Ni‐based catalysts (BNC1 and BNC2). Modified methylaluminoxane was used as cocatalyst due to good reactivity in MMA/H copolymerization. Among the structures, BNC1 showed the highest catalyst activity (6.9 × 104 g P. mol−1Ni. h−1). Although Mw of the copolymer made by BNC1 was higher than its mononuclear, molecular weight distribution was broader. The optimum molar ratios for mononuclear and dinuclear were obtained at [Al]/[Ni] = 1,000:1 and [Al]/[Ni] = 1,500:1, respectively. Surprisingly, introduction of MMA (up to [MMA]/[H] = 50:50 molar ratio) into the polymerization solution increased the activity of all catalysts. 1H NMR analysis study revealed that increasing of MMA in the feed composition raised incorporation of the comonomer into the obtained copolymers. The result was consistent on the calculated reactivity ratio of monomers, using Kelen–Tudos method. In addition, BNC1 (at [MMA]/[H] = 70:30 molar ratio) demonstrated more incorporation of MMA to the main copolymer chain (95.2% mol). On the other side, study on tacticity of the PMMA sample was investigated that showed a distribution of stereoregularity in the order of atactic > > syndiotatic > isotactic (53.2 > 26.7 > 20.1). In addition, for copolymers made by BNC1, an unusual pattern was observed as lower concentration of MMA in the feed (i.e., 30%) led to high isotactic blocks of MMA. The highest branching density of the polymer, however, was obtained by BNC1 (217/1000C) and the lowest by BNC2 (80/1000C). Higher extent of the polar comonomer (MMA) in the copolymer backbone led to increasing of Tg for the copolymer samples (from 74.4 to 98.9°C). The structural properties of the obtained copolymers were investigated using both Fourier transform infrared spectroscopy and Raman spectroscopies, as well.

Copolymerization of N-Tert-Butylacrylamide (NTB) and 7-Methacryloyloxy-4-Methyl coumarin (MAMC): Synthesis and characterization

Copolymers of various feed ratio of N-tert-butylacrylamide (NTB) and 7-methacryloyloxy-4-methyl coumarin (MAMC) were prepared by free radical solution polymerization in DMF at 70 °C using AIBN as an initiator. Synthesised copolymers were characterized and copolymer compositions were obtained by 1H NMR analysis data. By using Fineman-Ross, Kelen-Tudos and extended Kelen-Tudos methods, monomer reactivity ratios (r1 and r2) were calculated. Mean sequence lengths of the copolymers were estimated from monomer reactivity ratio (r1 and r2) values. Thermal characterizations of the copolymers were carried out using thermogravimetric analysis. The antimicrobial effects of obtained copolymers were also tested on various bacteria, and fungi.

Determination of Monomer Reactivity Ratios in Controlled Copolymerization of Acrylonitrile with Unsaturated Methyl Esters

This paper reports the investigation of copolymerization of acrylonitrile with methyl acrylate, dimethyl maleate, dimethyl fumarate and dimethyl itaconate via atom transfer radical polymerization mechanism using copper bromide as a catalyst in combination with tris(2-pyridylmethyl)amine as a ligand. The reactivity ratios of monomers were evaluated using the Finemann–Ross and Kelen–Tudos methods basing on the copolymer composition determined by 1H NMR spectroscopy. It was found that reversible deactivation mechanism has no significant influence on the monomer reactivity ratios. It was found that among the tested comonomers methyl acrylate and dimethyl itaconate seem to be the most suitable ones for obtaining well-defined copolymers of acrylonitrile.

High molecular weight poly(acrylonitrile-co-3-aminocarbonyl-3-butenoic acid methyl ester) prepared by mixed solvent polymerization I. effect of monomer feed ratios on polymerization and stabilization

In order to improve the pre-oxidation performance and molecular weight of polyacrylonitrile (PAN). In this work, 3-aminocarbonyl-3-butenoic acid methyl ester) (ABM) was used as comonomers to formulate high molecular weight poly(acrylonitrile-co-3-amino-carbonyl-3-butenoic acid methyl ester) [P(AN-co-ABM)] copolymer by radical polymerization in the mixed solvent of dimethyl sulfoxide/deionized water =60/40 (wt/wt). The highest molecular weight of resultant P(AN-co-ABM) is 4.87 × 105 g/mol, 5 times larger than that prepared by solution polymerization under the same reaction conditions. The monomer reactivity ratios are calculated by Fineman-Ross and Kelen-Tudos methods based on the elemental analysis results. Thermal properties of P(AN-co-ABM) copolymer with different monomer feed ratios were studied by Fourier transform infrared spectroscopy, X-ray diffraction, differential scanning calorimetry in detail. The results show that the stabilization of P(AN-co-ABM) has been significantly improved by ABM, confirmed by the lower initiation temperature and broader exothermic peak in DSC curves, larger extent of stabilization from FTIR and XRD studies, and smaller Ea of cyclization, which is due to the initiation of ABM through ionic mechanism. This study clearly shows that high molecular weight P(AN-co-ABM) copolymer is a better material for carbon fiber precursor.

Relative reactivities of epoxide monomers during copolymerization with carbon dioxide

The copolymerization of CO 2 /propylene oxide (PO)/cyclohexene oxide (CHO) was carried out using a Zn-based heterogeneous catalyst, namely a supported multi-component zinc dicarboxylate. The monomer reactivity ratios of PO ( r P O ) to CHO ( r C H O ) were estimated using the Fineman-Ross and Kelen-Tudos graphical methods. The results showed that the r P O values were significantly higher than the corresponding r C H O values in all cases, indicating that the incorporation of CHO into the polymer was kinetically unfavorable. The influence of the reaction temperature and pressure on the monomer reactivity ratios was also discussed. It was found that raising either the reaction temperature or pressure led to an increase in r C H O . In contrast, r P O decreased upon increasing the reaction temperature, but exhibited a small fluctuation upon increasing the reaction pressure. • Fineman-Ross and Kelen-Tudos methods were used to determine monomer reactivity ratios during the terpolymerization of CHO, PO and CO 2 with supported multi-component zinc dicarboxylate catalyst. • The r P O values were higher than 2, and the r C H O values were less than 0.5, meaning that a kinetic preference for incorporation of PO in the polymer. • The influence of the reaction temperature and pressure on the monomer reactivity was discussed.

Synthesis, characterization, microstructure determination, thermal studies of poly (N-vinyl pyrrolidone-maleic anhydride-methyl methacrylate)

ABSTRACTSynthesis of Poly (N-vinyl pyrrolidone-maleic anhydride-methyl methacrylate) terpolymer using azobisisobutyronitrile in 1,4-dioxan is described. The polymers with different composition were synthesized and characterized using FTIR, 1HNMR, 13NMR, TGA and DSC techniques. The monomer-monomer interactions were studied using Finemann-Ross and Kelen-Tudos methods by calculating the reactivity ratio. The reactivity ratio r1 and r2 with respect to methyl methacrylate and N-vinylpyrrolidone-maleic anhydride complexomer are found to be 6.05 and 0.06 respectively. The study showed methyl methacrylate have higher reactivity than N-vinyl-2-pyrrolidone-maleic anhydride complex, i.e., the terpolymer contained methyl methacrylate in higher ratio. The thermal stability of poly (N-vinyl pyrrolidone-maleic anhydride-methyl methacrylate) was 165°C and the glass transition temperature was found to increase from 153°C to 182°C as MMA concentration increase. The studies indicate the activity of the polymer to inhibit bacterial growth is very poor.

Encapsulation of multi-walled carbon nanotubes with copolymer to disperse in aqueous media

An emulsion-like polymerization technique called admicellar polymerization (AP) was used to encapsulate a thin film of copolymer on the surface of multi-walled carbon nanotubes (MWCNTs). A water-soluble component sodium acrylate and a non-water soluble component methyl methacrylate were used to form thin films of copolymer on multi-walled carbon nanotubes. Various ratios of polymer combinations were formulated on MWCNT’s to understand the stability of polymer composition and surface heterogeneity on MWCNT’s. Encapsulated MWCNTs were characterized using SEM, energy dispersive spectroscopy (EDS), thermal analysis and FT-IR. Analytical studies indicate the formation of copolymer on MWCNTs. Monomer conversion rate and copolymer reactivity ratios were analyzed using high performance liquid chromatography (HPLC) by Fineman-Ross and Kelen-Tudos methods. The copolymer combination showed an alternating tendency and azeotropic composition at 0.6 acrylate monomer. The encapsulated MWCNTs were stable in aqueous media with onset of aggregate formation beginning at 40 days for the copolymer.

Copolymerization of benzyl methacrylate and a methacrylate bearing benzophenoxy and hydroxyl side groups: Monomer reactivity ratios, thermal studies and dielectric measurements

Statistical copolymers of 2-hydroxy-3-benzophenoxy propyl methacrylate (HBPPMA) and benzyl methacrylate (BzMA) in different feed ratios were synthesized by free radical copolymerization method at 60 °C in presence of AIBN initiator. The compositions of copolymer were estimated from 1H-NMR technique. The monomer reactivity ratios of HBPPMA and BzMA were calculated as r1 (rHBPPMA)=0.51±0.076 and r2 (rBzMA)=1.07±0.140 for Kelen-Tudos method, and was estimated as r1=0.37±0.0006 and r2=0.64±0.0485 according to Fineman Ross equation. The average values estimated from the two methods showed that monomer reactivity ratio of benzyl methacrylate was a slightly high in comparison to HBPPMA. The copolymer system showed an azeotropic point, which is equal to M BzMA =m BzMA =0.43. DSC measurements showed that the Tg’s of poly(HBPPMA) and poly(BzMA) were 84 °C and 73 °C, respectively. The Tg in the copolymer system decreased with increase in benzyl methacrylate content. The decomposition temperature of poly(BzMA) and poly(HBPPMA) occurs in a single stage at about 207 °C and 260 °C, respectively. Those of HBPPMA-BzMA copolymer systems are between decomposition temperatures of two homopolymers. The dielectric constant, dielectric loss factor and electrical conductivity were investigated depend on the frequency of the copolymers. The highest dielectric constants depending on all the studied frequencies were recorded for the poly(HBPPMA) and the copolymer containing the highest HBPPMA unit. The dielectric constant for P(HBPPMA) and P(BzMA) at 1 kHz are 6.56 and 3.22, respectively. Also, those of copolymer systems were estimated between these two values. Similarly, poly(HBPPMA) and copolymers, which are prepared under the same conditions show the dissipation factor and conductivity as well.

Reverse iodine transfer radical copolymerization of vinyl acetate and vinyl benzoate: a kinetic study

Copolymers from vinyl ester pairs including vinyl acetate (VAc) and vinyl benzoate (VBz) were synthesized via reverse iodine transfer radical polymerization technique. Polymerization was carried out in the presence of iodine as an in situ generator of the transfer agent and 2,2′-azobis(isobutyronitrile) as the initiator at 70 °C. Individual and overall conversions of the comonomers as well as compositions of the comonomer mixture and the produced copolymer were determined from 1H NMR spectra recorded at various times. Reactivity ratios of VAc and VBz were calculated to be 0.52 ± 0.18 and 1.62 ± 0.43, respectively, by extended Kelen–Tudos (KT) method. Experimental and theoretical drifts in the comonomer mixture and copolymer compositions with conversion were evaluated, where theoretical values were calculated from Meyer–Lowry equation using reactivity ratios obtained from extended KT method. A good agreement between the experimental and theoretical values was observed, indicating that reactivity ratios estimated in the present work are accurate. It was also found that produced copolymer has a statistical structure. Attempts were also made to estimate ratio of \(k_{\text{p}} /k_{\text{t}}^{0.5}\) as a function of initial feed composition.

Kinetical Study for Radical Copolymerization of N-(4-bromo-3,5-difluorophenyl) Maleimide with Styrene Including Thermal Stability of the Obtained Copolymer

The reactivity ratios of the N-[(4-bromo-3, 5-difluorine) phenyl]maleimide (BDPM) and styrene(St) were determined by Finemann-Ross method and Kelen-Tudos method. The effect of the monomer concentration, initiator concentration and temperature on the rate of polymerization (Rp) was studied, and the activation energy of the polymerization was calculated. Through changing the monomer proportion, the copolymers with different composition were obtained. The molecular weight, composition and glass transition temperature (Tg) of the copolymers were determined by gel permeation chromatography, elemental analysis and DSC respectively.

Synthesis and characterization of poly (ε-caprolactam-co-lactide) polyesteramides using Brønsted acid or Brønsted base organocatalyst

Polyesteramides (PEAs) are considered intriguing materials due to the combination of the favorable degradable capacity of aliphatic polyesters given by the hydrolizable ester groups and the desirable thermal and mechanical behavior of polyamides given by the amide groups. Between polyamides and polyester families, poly(ε-caprolactam) and poly(l-lactide) stand out due to their commercial value and outstanding properties. Nevertheless, to date these two monomers have not been co-polymerized due to their different reactivities. In this work, we report for the first time, up to our knowledge, the synthesis of poly(ε-caprolactam-co-l-lactide) copolymers with different compositions. Two different catalysts: (a) Brønsted acid ionic liquid 1-(4-sulfobutyl)-3-methylimidazolium hydrogen sulfate (BAIL) and (b) Brønsted base P4-t-Bu have been explored. In the presence of Brønsted acid the l-lactide reactivity is higher than the ε-caprolactam while in the presence of Brønsted base the opposite behavior is observed. Using Kelen-Tudos method the monomer reactivity ratios are calculated and obtained as rCLa=0.39 and rLA=1.6 and rCLa=2.2 and rLA=0.1 using BAIL and P4-t-Bu, respectively. These differences in the monomer reactivity ratios give us the possibility to create copolymers with different chain microstructure depending on the employed catalyst between 2 and 9kDa. Thus, using P4-t-Bu random copolymers can be obtained at high l-lactide concentration and blocky character copolymers at high ε-caprolactam concentration. Meanwhile, using BAIL catalyst random like copolymers are obtained at high ε-caprolactam contents and blocky character at high l-lactide contents.

Pendant Chain Effect on the Synthesis, Characterization, and Structure–Property Relations of Poly(di-n-alkyl itaconate-co-isoprene) Biobased Elastomers

A series of biobased elastomers, poly(di-n-alkyl itaconate-co-isoprene)s (PDAIIs), were prepared by using itaconic acid as a renewable starting material. It is revealed that pendent chain profoundly affected the structure and properties of PDAIIs. The molecular structures of the PDAIIs were analyzed by 1H NMR and FTIR. Dialkyl itaconate to isoprene reactivity ratios measured by Kelen–Tudos method demonstrated that PDAIIs with short side chains tended to alternate copolymerized and the long side chain ones tented to gradient copolymerized. Glass transition temperature, dielectric properties, and thermal stability of the PDAIIs were studied and these properties were tunable by varying the side chain length. Tensile tests revealed that cross-linked PDAIIs are elastic with a high elongation at break. With renewable resources and the side chain adjustability, PDAII elastomers potentially have a positive economic and ecological impact.

Synthesis of β-Myrcene-Based Polymers and Styrene Block and Statistical Copolymers by SG1 Nitroxide-Mediated Controlled Radical Polymerization

Nitroxide-mediated polymerization (NMP) of β-myrcene (My) at 120 °C in bulk using unimolecular SG1-based succinimidyl ester-functionalized BlocBuilder (BB) alkoxyamine resulted in low dispersity (Đ = 1.1–1.4) poly(myrcene)s P(My)s with high SG1 chain-end fidelity. The polymerizations also showed the number-average molecular weights (Mn) increased almost linearly with conversion. SG1-terminated P(My) macroinitiators were cleanly chain-extended with styrene (S) and the S-rich P(My-b-S) diblock copolymers exhibited two distinct glass transition temperatures (Tgs), indicative of microphase separation. P(My-b-S) diblocks showed brittle stress–strain behavior, plausibly due to relatively low Mn. My/S mixtures with initial S molar feed compositions fS,0 = 0.10–0.94 were also statistically copolymerized (Mn = 8.2–19.8 kg mol–1, Đ ≤ 1.37, and monomodal distributions). Copolymer reactivity ratios were rS = 0.25 ± 0.04/0.34 ± 0.19 and rMy = 1.88 ± 0.12/2.19 ± 0.07 using Fineman–Ross and Kelen–Tudos methods. The stat...

Homopolymerization and synthesis of a new methacrylate monomer bearing a boron side group: characterization and determination of monomer reactivity ratios with styrene

Boron methacrylate (BAc) monomer was synthesized via an esterification reaction. Boric acid, neopentyl glycol, and 2-hydroxyethyl methacrylate (HEMA) were reacted to obtain boron-containing acrylic monomer. Characterization was achieved by FT-IR, $^{13}$C NMR, $^{1}$H NMR, and $^{11}$B NMR and the results for the synthesized monomer were compared to those for HEMA. Homopolymer and copolymers with styrene (St) were synthesized via free radical polymerization. The properties of the synthesized styrene copolymers were investigated using several techniques. Monomer reactivity ratios for the studied monomer pair were calculated using the extended Kelen-Tudos method. Copolymerization compositions and reactive ratios showed that the obtained copolymers had random characters. Thermal behaviors of the synthesized polymers were studied by thermal gravimetric analysis and differential scanning calorimetry methods. Boron methacrylate homopolymer showed one glass transition temperature at 73.7 $^{\circ}$C. Depending on copolymer composition, the glass transition temperatures of boron methacrylate-styrene copolymers were between 68.4 $^{\circ}$C and 81.5 $^{\circ}$C.

Photocrosslinkable polymer based on 4-(3-(2,4-dichlorophenyl)-3-oxoprop-1-enyl) phenylacrylate: synthesis, reactivity ratio, and crosslinking studies

Abstract The acrylate monomer was synthesized by two step process. 2,4-dichloro-1-ene(4-hydroxyphenyl)phenone (DHP) was synthesized using 4-hydroxy benzaldehyde and 2,4-dichloro acetophenone. 4-[3-(2,4-dichloro-phenyl)3-oxoprop-1-en-1-yl]phenylacrylate (DCP) was prepared by reacting DHP with acryloyl chloride. The synthesized monomer was copolymerized with 2-hydroxyethyl acrylate and styrene using solution polymerization technique. Monomer and polymers were characterized by IR, NMR and UV techniques. The average molecular weight of the polymer was around 4000 g/mol. First and second decomposition temperature of the polymers was around 320 °C and 430 °C, respectively. The reactivity ratio of the polymers was calculated by Fineman-Ross, Kelen-Tudos and extended Kelen-Tudos methods. The synthesized monomer has been less reactive than the commercial monomer. The rate of photocrosslinking increased from 39 % to 99 % due to the using of copolymerization technique.