Double Crystalline Multiblock Copolymers with Controlling Microstructure for High Shape Memory Fixity and Recovery

doi:10.1021/acsami.7b08403

CORC > 化学研究所 > 中国科学院化学研究所

	Double Crystalline Multiblock Copolymers with Controlling Microstructure for High Shape Memory Fixity and Recovery
	Huang, Miaoming 1,2; Zheng, Liuchun 1; Wang, Lili 1,3; Dong, Xia 1,3; Gao, Xia 2; Li, Chuncheng 1; Wang, Dujin 1,3
刊名	ACS APPLIED MATERIALS & INTERFACES
	2017-09-07
卷号	9 期号:35 页码:30046-30055
关键词	Double Crystalline Multiblock Copolymers Shape Memory Fixity And Recovery Microstructure Origin Composition And Deformation Strain Irreversible Deformation
ISSN号	1944-8244
DOI	10.1021/acsami.7b08403
英文摘要	The shape memory performance of double crystalline poly(butylene succinate)-co-poly(e-caprolactone) (PBS-co-PCL) multiblock copolymers with controlling microstructure was studied, and the corresponding microstructure origin was further quantitatively analyzed by wide and small angle X-ray scattering (WAXS and SAXS) experiments. It was found that the multiblock copolymer with higher PCL content, proper deformation strain, and inhibited crystallization of PBS (lower crystallinity and smaller crystal size, which could be realized by quenching from the melt) would exhibit better shape memory fixity and recovery performance. WAXS and SAXS results revealed that the shape fixity ratio (R-f) was closely related with the relative-crystallinity of the PCL component, while the shape recovery ratio (R-r) strongly relied on the deformation and recovery behavior of the PBS and PCL components that changed along with compositions and deformation strains. For the copolymer with higher PCL content (BS30CL70), at the lower deformation strain (0% similar to 90%), both the PBS and PCL components after recovery had no orientation (labeled as stage I), resulting in almost complete recovery; with the deformation strain increasing (90% similar to 200%), it was the irreversible deformation of the PCL component that largely took responsibility for the decreased R-r (stage II). On the contrary, when the PCL content decreased to SO wt % (BS50CL50), stage I (0% similar to 50%) and stage II (50% similar to 100%) appeared in much lower strains; with the deformation strain increasing (100% 200%), the irreversible deformation of both PBS and PCL components was mainly responsible for the further reduction of R-f (stage III). It could exhibit excellent shape memory performance for biodegradable double crystalline multiblock copolymers by controlling the composition, deformation strain, and crystallization, which might have wide application prospects in biomedical areas.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000410597500070
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/44973]
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 Res Educ Ctr Excellence Mol Sci, CAS Key Lab Engn Plast,Inst Chem, Beijing 100190, Peoples R China 2.Beijing Ctr Phys & Chem Anal, Beijing Engn Res Ctr Food Safety Anal, Beijing Key Lab Organ Mat Testing Technol & Qual, Beijing 100089, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Huang, Miaoming,Zheng, Liuchun,Wang, Lili,et al. Double Crystalline Multiblock Copolymers with Controlling Microstructure for High Shape Memory Fixity and Recovery[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(35):30046-30055.
APA	Huang, Miaoming.,Zheng, Liuchun.,Wang, Lili.,Dong, Xia.,Gao, Xia.,...&Wang, Dujin.(2017).Double Crystalline Multiblock Copolymers with Controlling Microstructure for High Shape Memory Fixity and Recovery.ACS APPLIED MATERIALS & INTERFACES,9(35),30046-30055.
MLA	Huang, Miaoming,et al."Double Crystalline Multiblock Copolymers with Controlling Microstructure for High Shape Memory Fixity and Recovery".ACS APPLIED MATERIALS & INTERFACES 9.35(2017):30046-30055.