Diblock copolymers with an amorphous, high glass transition temperature, organometallic block: synthesis, characterisation and self-assembly of polystyrene-b

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• 作者：Jessica Gwyther ; Ian Manners
• 关键词：Block copolymer ; Metallopolymer ; Ring-opening polymerisation
• 刊名：Polymer
• 出版年：2009
• 出版时间：3 November 2009
• 年：2009
• 卷：50
• 期：23
• 页码：5384-5389
• 全文大小：1188 K

文摘

Living anionic ring-opening polymerisation of isopropylmethylsila[1]ferrocenophane yields poly(ferrocenylisopropylmethylsilane) (PFiPMS) with controlled molecular weights and narrow polydispersities up to M_n = ca. 20,000 Da. Polystyrene-b-poly(ferrocenylisopropylmethylsilane) (PS-b-PFiPMS) diblock copolymers have been prepared via sequential living anionic polymerisation. These materials are examples of diblock copolymers with an amorphous, organometallic block with a glass transition temperature (T_g) above room temperature (60 °C). High molecular weight diblock copolymers (M_n = 42,000–51,000 Da) were targeted with low polydispersities (PDI = 1.1). As both blocks are amorphous, these materials self-assemble into predictable morphologies in the bulk state with well-ordered nanodomains.