Synthesis and properties of high‐molecular‐weight polyesters based on 1,4:3,6‐dianhydrohexitols and terephthalic acid
作者:
Reinhard Storbeck,
Matthias Rehahn,
Matthias Ballauff,
期刊:
Die Makromolekulare Chemie
(WILEY Available online 1993)
卷期:
Volume 194,
issue 1
页码: 53-64
ISSN:0025-116X
年代: 1993
DOI:10.1002/macp.1993.021940104
出版商: Hüthig&Wepf Verlag
数据来源: WILEY
摘要:
AbstractThe synthesis of high‐molecular‐weight polyesters based on 1,4:3,6‐dianhydro‐D‐sorbitol (DAS), 1,4:3,6‐dianhydro‐D‐mannitol (DAM) and 1,4:3,6‐dianhydro‐L‐iditol (DAI) is reported. The polymers were obtained by polycondensation in solution of the dianhydrohexitols with terephthaloyl dichloride and 2,5‐diethoxyterephthaloyl dichloride. The side groups of the latter monomer lead to a marked improvement of the solubility of the resulting polyesters which can be characterized by NMR techniques and osmometry. It is shown that all polyesters exhibit an excellent stability against thermal decomposition. Materials deriving from the polycondensation with terephthalic acid have glass transitions above 200°C if the molecular weight is high enough. The wide‐angle X‐ray analysis shows that polyesters deriving from terephthalic acid and DAM as well as DAI are semicrystalline. All results demonstrate that these polyesters partly deriving from renewable carbon sources present promising highTgmaterials with
点击下载:
PDF
(493KB)
返 回