Noncovalent Cross-Linking of Poly(methyl methacrylate) via Polypseudorotaxane

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• 作者：Takayuki Nozaki ; Takahiro Uno ; Takahito Itoh ; Masataka Kubo
• 刊名：Macromolecules
• 出版年：2008
• 出版时间：July 22, 2008
• 年：2008
• 卷：41
• 期：14
• 页码：5186 - 5190
• 全文大小：309K
• 年卷期：v.41,no.14(July 22, 2008)
• ISSN：1520-5835

文摘

Free radical bulk polymerization of methyl methacrylate (MMA) was carried out in the presence of a macrocyclic amine based on cyclic polystyrene. The polymer changed to an insoluble solid upon heating at 180 °C in a vacuum. The insolubility is attributed to the in situ formation of a polypseudorotaxane, followed by the covalent fixation of the threaded ring segment with the linear chain to form a noncovalent three-dimensional structure.