Synthesis of polyester having pendent hydroxyl groups via regioselective dehydration polycondensations of dicarboxylic acids and diols by low temperature polycondensation
作者： Yosuke Shibata , Akinori Takasu
DOI: 10.1002/POLA.23619
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摘要: In this article, we describe the one-step synthesis of polyesters having pendent hydroxyl groups by Lewis acid-catalyzed, regioselective, dehydration polycondensations diols (glycerol and sorbitol) dicarboxylic acids [tartaric acid (TA) malic (MA)] containing groups, using low temperature polycondensation technique. Direct TA or MA 1,9-nonanediol catalyzed scandium trifluoromethanesulfonate [Sc(OTf)3] successfully yielded linear functionality (Mn = ca. 1.0 × 104). To demonstrate reactivity group, a glycosidation was performed. Poly(nonamethylene L-malate) showed significant higher biodegradability, compared with poly(nonamethylene L-tartrate) succinate). Stable emulsion could be prepared poly(vinyl alcohol) as surfactant, although emulsions consisting succinate) were unstable phase-separated within few days. Furthermore, direct diethylene glycol (DEG) triethylene (TEG) produced water-soluble groups. This new system may extremely effective not only for advanced material design functional monomers but also utilization biomass resources chemical substances. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Chem 47: 5747–5759,
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