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A Subtle End-Group Effect on Macroscopic Physical Gelation of Triblock Copolymer Aqueous Solutions

Authors

  • Lin Yu,

    1. Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China, Fax: (+86) 21-6564-0293
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  • Huan Zhang,

    1. Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China, Fax: (+86) 21-6564-0293
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  • Jiandong Ding Prof. Dr.

    1. Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China, Fax: (+86) 21-6564-0293
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  • We are grateful for the financial support from the NSF of China (20 374 015, 50 533 010, and 20 574 013), the Key Grant of the Chinese Ministry of Education (305 004), 973 Project and 863 Project (2005CB522700) from the Chinese Ministry of Science and Technology, and the Science and Technology Developing Foundation of Shanghai (04JC14019 and 055 207 082).

Abstract

original image

En„d“scheidend: Alkyl-Endgruppen können in einer solartigen Suspension einen thermoreversiblen Sol-Gel-Übergang auslösen, indem sie das makroskopische Selbstorganisationsverhalten beeinflussen. Das Bild zeigt PLGA-PEG-PLGA-Triblockcopolymer/Wasser-Mischungen in Sol- (Polymer a), Gel- (Polymere b und c) und Entmischungszuständen (Polymer d). PLGA=Poly(milchsäure-co-glycolsäure), PEG=Polyethylenglycol.

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