Hierarchical assembly in PLA-PEO-PLA hydrogels with crystalline domains and effect of block stereochemistry.

Xuechen Yin,David R O Hewitt, Alyssa N Preston,Luke A Heroux,Michael M Agamalian,Suan P Quah,Bingqian Zheng,Andrew J Smith,Scott T Laughlin,Robert B Grubbs,Surita R Bhatia

Colloids and Surfaces B: Biointerfaces（2019）

引用 6|浏览17

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摘要

•Microscale structures are observed in hydrogels of PLA-PEO-PLA block copolymers.•Nature of the microstructure depends on stereochemistry of the PLA block.•Clear micropores and mass fractal structure for gels with a higher l/d-lactide ratio.•More uniform surface fractal structure for gels with a 50/50 l/d-lactide ratio.•Stereochemistry can be used to tune microstructure of polymeric biomaterials.

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关键词

Microstructure,Stereochemistry,USANS,PLGA,Porous,Scaffold,Hydrogel,PLLA

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