High Performance Bio-based Polyurethane Elastomers: Effect of Different Soft and Hard Segments
PAPERS|Updated:2021-05-12
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High Performance Bio-based Polyurethane Elastomers: Effect of Different Soft and Hard Segments
Chinese Journal of Polymer ScienceVol. 34, Issue 7, Pages: 901-909(2016)
Affiliations:
a.Key Laboratory of Marine Materials and Related Technologies, Key Laboratory of Marine Materials and Protective Technologies of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
b.Department of Polymer Science and Engineering, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
c.Department of Polymer and Coating, Jiangxi Science & Technology Normal University, Nanchang 330013, China
Bin Cui, Qing-Yun Wu, Lin Gu, et al. High Performance Bio-based Polyurethane Elastomers: Effect of Different Soft and Hard Segments[J]. Chinese Journal of Polymer Science, 2016, 34(7): 901-909.
DOI:
Bin Cui, Qing-Yun Wu, Lin Gu, et al. High Performance Bio-based Polyurethane Elastomers: Effect of Different Soft and Hard Segments[J]. Chinese Journal of Polymer Science, 2016, 34(7): 901-909.DOI: 10.1007/s10118-016-1811-7.
High Performance Bio-based Polyurethane Elastomers: Effect of Different Soft and Hard Segments
摘要
Abstract
In this work
a series of high performance bio-based polyurethanes (bio-PUs) were synthesized from polylactide (PLA)-based diols
different diisocyanates (TDI
MDI
HDI
IPDI) and chain extender 1
4-butanediol
in which different soft and hard segments are used to adjust their transition temperatures and mechanical properties. Poly(lactide-
co
-caprolactone) copolymer diols (
co
-PLAols) instead of PLA diols as the soft segment improved the thermal stability and mechanical properties of the synthesized bio-PUs. Among them
MDI-based bio-PUs have the highest
T
g
(43.8℃)
tensile strength (23.5 MPa) and modulus (380.8 MPa)
while HDI-based bio-PUs have the lowest
T
g
(21.4℃) and highest elongation at break (580%). Especially
the bio-PUs synthesized from
co
-PLAols and MDI demonstrate better mechanical properties
closed to petroleum-based commodities. Furthermore
the obtained bio-PUs display good shape memory properties at body temperature and cytocompatibility. Therefore
these bio-PUs are promising for applications in biomedical fields.
关键词
Keywords
references
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