Sphere-to-rod transition of short-chain PEO-b-PDMS-b-PEO in aqueous solution induced by copolymer concentration |
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| Authors: | Xiao Li Zhan Bi Chen Qing Hua Zhang Ling Min Yi |
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| Institution: | a College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China;b Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China |
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| Abstract: | A short-chain triblock copolymer EO9-DMS7-EO9 was synthesized by coupling reaction of allyl-terminated poly(ethylene oxide) and Si-H-terminated poly(dimethylsiloxane).The structure and purity of synthesized copolymer was carefully character-ized.Self-assembly behavior of EO9-DMS7-EO9 triblock copolymer in water was investigated.And it was found that along with the increase of copolymer concentration,morphology of self-assembled aggregates transits from sphere to rod.A plausible under-standing of the morphology transition for the investigated triblock copolymer was proposed. |
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| Keywords: | Block copolymer Self-assembly Polysiloxane Morphology transition |
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