Stress induced reversible crystal transition in polymers

被引：8

作者：

Liu, Guoming ^{[1
]}

Zhang, Xiuqin ^{[1
,2
]}

Wang, Dujin ^{[1
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China

[2] Beijing Inst Fash Technol, Dept Mat Sci & Engn, Beijing Key Lab Clothing Mat R&D & Assessment, Beijing 100029, Peoples R China

来源：

POLYMER INTERNATIONAL | 2015年 / 64卷 / 08期

基金：

中国国家自然科学基金;

关键词：

crystal transition; deformation; martensitic transformation; elasticity; PLANAR ZIGZAG MODIFICATION; SYNDIOTACTIC POLYPROPYLENE; PHASE-TRANSITION; POLY(TETRAMETHYLENE TEREPHTHALATE); POLY(BUTYLENE TEREPHTHALATE); SOLID-STATE; DEFORMATION; CONFORMATION; FORMS; MECHANISMS;

D O I：

10.1002/pi.4903

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This minireview introduces the state of the art in the stress induced reversible crystal transition phenomenon frequently found in polyethers and polyesters. This type of crystal transition is thermodynamically a first order phase transition. Microscopically, it generally corresponds to a change from gauche conformers to trans conformers under external stress, which leads to longer repeating length per monomeric unit along polymer chains. The dimension of the lamellar structure is influenced by the crystal transition as well. The crystal lattice parameters, chain conformation, critical stress and the energy barrier for crystal transition in different polymers are summarized. The mechanical property features imparted by the reversible crystal transition are briefly introduced. (c) 2015 Society of Chemical Industry

引用

页码：951 / 956

页数：6

共 45 条

[31] MOLECULAR MODEL OF DRAWING POLYETHYLENE AND POLYPROPYLENE [J].