Soluble Polyesters Research Articles

Soluble polyesters containing carbazole units in the main chain: synthesis, properties and chemical doping

Die Makromolekulare Chemie, Rapid CommunicationsVolume 13, Issue 12 p. 549-554 Article Soluble polyesters containing carbazole units in the main chain: synthesis, properties and chemical doping Isabel Drzewinski, Isabel Drzewinski Laboratoire de Recherches sur les Macromolécules de l'Université Paris-Nord (Unité Associée au C.N.R.S.), Avenue J. B. Clément, 93430 Villetaneuse, FranceSearch for more papers by this authorDominique Adès, Dominique Adès Laboratoire de Recherches sur les Macromolécules de l'Université Paris-Nord (Unité Associée au C.N.R.S.), Avenue J. B. Clément, 93430 Villetaneuse, FranceSearch for more papers by this authorAlain Siove, Corresponding Author Alain Siove Laboratoire de Recherches sur les Macromolécules de l'Université Paris-Nord (Unité Associée au C.N.R.S.), Avenue J. B. Clément, 93430 Villetaneuse, FranceLaboratoire de Recherches sur les Macromolécules de l'Université Paris-Nord (Unité Associée au C.N.R.S.), Avenue J. B. Clément, 93430 Villetaneuse, FranceSearch for more papers by this author Isabel Drzewinski, Isabel Drzewinski Laboratoire de Recherches sur les Macromolécules de l'Université Paris-Nord (Unité Associée au C.N.R.S.), Avenue J. B. Clément, 93430 Villetaneuse, FranceSearch for more papers by this authorDominique Adès, Dominique Adès Laboratoire de Recherches sur les Macromolécules de l'Université Paris-Nord (Unité Associée au C.N.R.S.), Avenue J. B. Clément, 93430 Villetaneuse, FranceSearch for more papers by this authorAlain Siove, Corresponding Author Alain Siove Laboratoire de Recherches sur les Macromolécules de l'Université Paris-Nord (Unité Associée au C.N.R.S.), Avenue J. B. Clément, 93430 Villetaneuse, FranceLaboratoire de Recherches sur les Macromolécules de l'Université Paris-Nord (Unité Associée au C.N.R.S.), Avenue J. B. Clément, 93430 Villetaneuse, FranceSearch for more papers by this author First published: December 1992 https://doi.org/10.1002/marc.1992.030131204Citations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume13, Issue12December 1992Pages 549-554 RelatedInformation

New polymer syntheses, 52. Thermotropic copolyesters of various substituted terephthalic acids and 4,4′‐dihydroxybiphenyl

Various copolyesters were synthesized from 4,4′-dihydroxybiphenyl and combinations of two or three differently substituted terephthalic acids. Various synthetic methods were studied; polycondensations of terephthaloyl dichlorides in dry pyridine gave the highest molecular weights. All copolyesters are semicrystalline and form a nematic melt above their melting points. Several copolyesters are well soluble in aprotic organic solvents, such as dichloromethane, N,N-dimethyl-formamide (DMF), methyl benzoate or chlorobenzene. A blend of such a soluble polyester (5 wt.-%) with bisphenol-A polycarbonate (poly(oxycarbonyl-oxy-1,4-phenyleneisopropylidene-1,4-phenylene)) was prepared from a cosolvent and various mechanical data were measured. These data were compared with those of an aromatic thermotropic polycarbonate.

Preparation of a water soluble polyester surfactant and its use in the emulsion polymerization of styrene

The synthesis procedure of Chen and Liu (1) was used to prepare a polyester surfactant from dimethyl 5-sulfoisophthalate, sodium salt, polyoxyethylene (MW 200) and phthalic anhydride by a two step esterification process. The surfactant has the unique structural features of multiple ionic groups and polyoxyethylene chains for hydrophilicity and aromatic ester linkages for hydrophobicity. The polyester surfactant exhibited a CMC of 0.25% (w/v) and a surface tension lowering of 23 dynes/cm. The use of the surfactant as stabilizer for the emulsion polymerization of styrene produced some unusual results. While the rate of polymerization was independent of surfactant concentration, the number of particles increased as N ∝ [S]0.91. The molecular weight of polystyrene produced was low and found not to be a function of surfactant concentration. The structural features of the surfactant suggest that a depletion stabilization mechanism might be operative in this system.

Rational path of the synthesis of liquid‐crystalline high‐molecular‐weight polyesters and their properties in solution

Makromolekulare Chemie. Macromolecular SymposiaVolume 26, Issue 1 p. 9-23 Article Rational path of the synthesis of liquid-crystalline high-molecular-weight polyesters and their properties in solution Serguei S. Skorokhodov, Serguei S. Skorokhodov Institute of Macromolecular Compounds of the Academy of Sciences of the USSR, Leningrad, 199004, USSRSearch for more papers by this authorAlexander Y.U. Bilibin, Corresponding Author Alexander Y.U. Bilibin Institute of Macromolecular Compounds of the Academy of Sciences of the USSR, Leningrad, 199004, USSRInstitute of Macromolecular Compounds of the Academy of Sciences of the USSR, Leningrad, 199004, USSRSearch for more papers by this author Serguei S. Skorokhodov, Serguei S. Skorokhodov Institute of Macromolecular Compounds of the Academy of Sciences of the USSR, Leningrad, 199004, USSRSearch for more papers by this authorAlexander Y.U. Bilibin, Corresponding Author Alexander Y.U. Bilibin Institute of Macromolecular Compounds of the Academy of Sciences of the USSR, Leningrad, 199004, USSRInstitute of Macromolecular Compounds of the Academy of Sciences of the USSR, Leningrad, 199004, USSRSearch for more papers by this author First published: March 1989 https://doi.org/10.1002/masy.19890260104Citations: 13AboutRelatedInformationPDFPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessClose modalShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Citing Literature Volume26, Issue1March 1989Pages 9-23 RelatedInformation RecommendedPhotoactive, liquid‐crystalline, hyperbranched benzylidene polyesters: Synthesis and characterizationM. Murali, A. B. Samui, Journal of Polymer Science Part A: Polymer ChemistrySynthesis and properties of high‐molecular‐weight polyesters based on 1,4:3,6‐dianhydrohexitols and terephthalic acidReinhard Storbeck, Matthias Rehahn, Matthias Ballauff, Die Makromolekulare ChemieStudies on thermotropic liquid crystalline polymers. XV. Synthesis and properties of liquid crystalline copoly(imide‐ester)sTzea-Ching Hung, Shih-Jieh Sun, Teh-Chou Chang, Journal of Polymer Science Part A: Polymer ChemistrySynthesis and characterization of new soluble polyesters derived from various cardo bisphenols by solution polycondensationDer-Jang Liaw, Been-Yang Liaw, Jun-Jang Hsu, Ying-Chi Cheng, Journal of Polymer Science Part A: Polymer ChemistrySynthesis and characterization of cholesteric thermotropic liquid crystalline polyestersSushilkumar A. Jadhav, Rahul R. Chougule, Yogesh A. Shinde, N. N. Chavan, Journal of Applied Polymer Science

A Nonaqueous Method for Sizing Wool Yarns: Preliminary Work

Preliminary work has shown the feasibility of a novel method of sizing wool yarns. The method is a nonaqueous, package-to-package technique in which a polymer size is applied to a yarn running through an air fluidized bed of powdered polymer, followed by in situ melting and air cooling. Some water soluble polymers that have properties suitable for application by this method have been investigated. Coated yarns have been produced with polymer add-on levels of 6% and 24% at treatment speeds of 70 and 40 meters/minute, respectively. Yarns treated with a water soluble polyester based polymer showed reduced hairiness and reduced incidence of fabric stitching faults in weaving trials.

Interaction between disperse dye and water soluble polyester surfactant

Abstract The interactions of a disperse dye with a series of polymeric surfactants of water soluble polyester structure have been studied by a spectrophotometric method. A type of 1:1 complex formation has been found in the interaction systems of disperse dye and water soluble polyester surfactants. The interactions have been shown to be hydrophobic in nature with the extent of interaction increasing with the increasing hydrophobicity of water soluble polyester surfactants.

Condensation polymerization of α,α′-dimethoxycarbonyl-p-xylylenedicyanide (α,α’) and oxidation to a quinodimethane polymer

α, α′-di(methoxycarbonyl)-p-xylylenedicyanide and oxydiethanol were treated with Ti(OBu)4 to produce a linear soluble polyester. Long reaction times led to the formation of an insoluble cross-linked polymer by reaction of the cyano groups.

DISTRIBUTION AND EXCRETION OF RADIOACTIVITY AFTER PARENTERAL ADMINISTRATION OF RADIOACTIVE POLYDIETHYLSTILBESTROL PHOSPHATE TO RATS AND A COW.

Polydiethylstilbestrol phosphate (PSP), a water soluble polyester of phosphoric acid and diethylstilbestrol, was injected in rats and a cow and the distribution and excretion of radioactivity were followed in both species. After a subcutaneous or intramuscular injection the bulk of the radioactivity was accumulated at the site of injection. The disappearance of radioactivity from this depot was very slow. As late as 90 days after the injection into rats, 20% of the administered radioactivity was still accumulated at the site of injection. The liver was very effective in removing labeled material from circulating blood. Twenty-four hours after intravenous injection in rats, about 50% of the radioactivity was recovered from this organ. The distribution of radioactivity in the cow indicated that the polymer was preferably accumulated in organs containing reticuloendothelial cells.