PROP: an in situ cascade polymerization method for the facile synthesis of polyesters

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2017专题

	PROP: an in situ cascade polymerization method for the facile synthesis of polyesters
	Li, He; Zhu, Xiang; Gu, Jiali; Li, Xiaohong; Yang, Xiaoming; Wang, Lian; Li, Yongjin; Tu, Yingfeng
刊名	POLYMER CHEMISTRY
	2017
卷号	8 期号:12 页码:1953-1962
ISSN号	1759-9954
英文摘要	We present here an in situ cascade polycondensation-coupling ring-opening polymerization (PROP) method for the facile synthesis of polyesters with relatively high molecular weights that are hard to synthesize by traditional condensation polymerization methods. The method was developed during our studies on the melt polymerization of three poly(trimethylene terephthalate) (PTT) analogues with different lateral alkyl chains at the beta-position of 1,3-propanediol, i.e., poly(2-methyl-1,3-propylene terephthalate) (PMPT), poly(neopentylene terephthalate) (PNT) and poly(2-methyl-2-propyl-1,3-propylene terephthalate) (PMPPT), from their corresponding cyclic oligoesters using diol initiators. Kinetic studies suggest that the systems follow the ring-opening polymerization mechanism at the early stages to form diol end-functionalized polyesters, while, subsequently, condensation polymerization starts between the polyesters at high monomer conversion regions. Inspired by the "domino reaction" concept in organic chemistry, the above in situ cascade polymerization process is attributed to a "domino polymerization" method. The structure-property relationship of these polyesters was investigated. It shows that the introduction of alkyl chains on the lateral side of propanediol segments increases the polyesters' Tg by improving the chain stiffness, as those with higher modulus exhibit higher Tg, yet the gas barrier properties decrease with more or longer alkyl chains introduced. Our PROP method affords a facile way to synthesize polyesters and copolyesters with functional groups for potential application in materials science.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13925]
专题	2017专题
推荐引用方式 GB/T 7714	Li, He,Zhu, Xiang,Gu, Jiali,et al. PROP: an in situ cascade polymerization method for the facile synthesis of polyesters[J]. POLYMER CHEMISTRY,2017,8(12):1953-1962.
APA	Li, He.,Zhu, Xiang.,Gu, Jiali.,Li, Xiaohong.,Yang, Xiaoming.,...&Tu, Yingfeng.(2017).PROP: an in situ cascade polymerization method for the facile synthesis of polyesters.POLYMER CHEMISTRY,8(12),1953-1962.
MLA	Li, He,et al."PROP: an in situ cascade polymerization method for the facile synthesis of polyesters".POLYMER CHEMISTRY 8.12(2017):1953-1962.