ICCAS OpenIR
Double Crystalline Multiblock Copolymers with Controlling Microstructure for High Shape Memory Fixity and Recovery
Huang, Miaoming1,2; Zheng, Liuchun1; Wang, Lili1,3; Dong, Xia1,3; Gao, Xia2; Li, Chuncheng1; Wang, Dujin1,3
2017-09-07
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume9Issue:35Pages:30046-30055
AbstractThe 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.
KeywordDouble Crystalline Multiblock Copolymers Shape Memory Fixity And Recovery Microstructure Origin Composition And Deformation Strain Irreversible Deformation
DOI10.1021/acsami.7b08403
Indexed BySCI
Language英语
WOS IDWOS:000410597500070
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/44974
Collection中国科学院化学研究所
Corresponding AuthorDong, Xia
Affiliation1.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
Recommended Citation
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.
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