Microstructural Evolution Underlying the Ternary Stages of the Elastic Behaviors for Poly(Ether-b-Amide) Copolymer Elastomers

doi:10.1002/polb.24600

CORC > 化学研究所 > 中国科学院化学研究所

	Microstructural Evolution Underlying the Ternary Stages of the Elastic Behaviors for Poly(Ether-b-Amide) Copolymer Elastomers
	Zhu, Ping 1; Dong, Xia 1,2; Huang, Miaoming 1; Wang, Lili 3; Qi, Shunxin 1,2; Wang, Dujin 1,2
刊名	JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
	2018-06-01
卷号	56 期号:11 页码:855-864
关键词	Elastic Behavior Orientation Poly(Ether-b-amide) Small-angle X-ray Scattering Wide-angle X-ray Diffraction
ISSN号	0887-6266
DOI	10.1002/polb.24600
英文摘要	Three stages of elastic behavior were observed during cyclic deformations for poly(ether-b-amide) (PEBA) segmented copolymers based on crystalline hard segments of polyamide 12 (PA12) and amorphous soft segments of poly(tetramethylene oxide) (PTMO). The underlying microstructural evolution was characterized by a combination of in situ Fourier transform infrared spectroscopy (FTIR), wide-angle X-ray diffraction (WAXD), and small-angle X-ray scattering (SAXS) technologies. The gamma-alpha '' phase transition of crystalline PA12 occurred upon stretching, and the orientation of the alpha '' phase was less reversible under larger strains. PTMO chain orientation cannot be restored to the initial state, contributing to plastic deformation. Driven by the entropy effect, the strain-induced crystallization of PTMO can fuse during sample retarding, exerting little influence on the residual strain. For PEBA with a shore D hardness of 35D, the long period (L) can be restored to the initial L after the sample was unloaded until system fibrillation. The tie molecules between adjacent oriented lamellae can be by drawn out high stress in a PEBA material with a shore D hardness of 40D, and the relaxation led to a second long period. (C) 2018 Wiley Periodicals, Inc.
语种	英语
出版者	WILEY
WOS记录号	WOS:000430394500004
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46219]
专题	中国科学院化学研究所
通讯作者	Dong, Xia
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Engn Plast, CAS Res Educ Ctr Excellence Mol Sci,Inst Chem, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Univ, Collaborat Innovat Ctr Marine Biomass Fibers Mat, Inst Marine Biobased Mat, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Ping,Dong, Xia,Huang, Miaoming,et al. Microstructural Evolution Underlying the Ternary Stages of the Elastic Behaviors for Poly(Ether-b-Amide) Copolymer Elastomers[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2018,56(11):855-864.
APA	Zhu, Ping,Dong, Xia,Huang, Miaoming,Wang, Lili,Qi, Shunxin,&Wang, Dujin.(2018).Microstructural Evolution Underlying the Ternary Stages of the Elastic Behaviors for Poly(Ether-b-Amide) Copolymer Elastomers.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,56(11),855-864.
MLA	Zhu, Ping,et al."Microstructural Evolution Underlying the Ternary Stages of the Elastic Behaviors for Poly(Ether-b-Amide) Copolymer Elastomers".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 56.11(2018):855-864.