Synthesis, characterization and thermokinetic analysis of the novel sugar based styrene co-polymer

Fatma Cetin Telli

doi:10.1590/0104-1428.02620

Abstract

Abstract A new α-chloralose (1,2-O-(R)-trichloroethylidene-α-D-glucofuranose)-based copolymer of styrene (PSVTEG) (2) was synthesized from vinyl (hydroxyl) furan monomer (1) and styrene by a conventional free radical polymerization reaction. The thermal decomposition kinetics of polymer were investigated by means of thermogravimetric analysis in dynamic nitrogen atmosphere at different heating rates. The apparent activation energy for the main stage thermal decomposition of the copolymer PSVTEG (2) was calculated using the Flynn-Wall-Ozawa and found to be 159.0±3 kj/mol. In addition, the activation energy value was calculated according to Coats-Redfern method and found to be compatible with the obtained result. The thermogram of the glycopolymer (PSVTEG) (2) has two decomposition stages and the calculated activation energy indicated that the main degradation stage is a nonspontaneous process (integral form 1/(1−α)2 for F3).

Highlights

IntroductionCarbohydrates are important natural became popular with an effort towards biomimics and most of sources of building blocks for the synthesis of biodegradable the attempts were based on the polymerization of monomers polymers
Glycopolymer is synthetic polymer with pendantDuring the last three decades, the synthesis of glycopolymers carbohydrates[1]
Carbohydrates are important natural became popular with an effort towards biomimics and most of sources of building blocks for the synthesis of biodegradable the attempts were based on the polymerization of monomers polymers

Summary

Introduction

Carbohydrates are important natural became popular with an effort towards biomimics and most of sources of building blocks for the synthesis of biodegradable the attempts were based on the polymerization of monomers polymers They are accessible and some are even containing carbohydrate moieties[15,16,17,18,19,20,21,22,23,24,25]. Wulff and coworkers have investigated the synthesis of C-glycosyl compounds containing polymerizable double bonds without protecting groups They have used poly(vinyl saccharide)s with N,N-dimethylbarbituric acid as linkers between sugar and styrene[34,35]. New vinyl (hydroxyl) furan monomer (1) of α-chloralose has been synthesized (Scheme 1) and characterized by Fourier transform infrared spectroscopy (FTIR), elemental analysis and optical rotation It is used for the preparation of copolymer styrene (2) (Scheme 2). The activation energies calculated by using this method was found to be 159.0±3 kj/mol

Materials

Instrumentation

Characterization Studies

One-dimensional diffusion

Conclusions