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Chapter 4 Fluorinated Copoly(carbosiloxane)s: Synthesis, Copolymerization, and Cross-Linked Networks

机译:第4章氟化共聚(碳硅氧烷):合成,共聚和交联网络

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A desirable combination of properties of siloxane and fluorinated polymers may be achieved by preparation of fluorinated copoly(carbosiloxane)s. A series of novel non-fluorinated (Ⅰ) and fluorinated α,ω-bis(glycidyloxypropyl)-pentasiloxanes (Ⅱ-Ⅲ) were prepared and subsequently copolymerized with piperazine to form well-defined non-fluorinated (IV) and fluorinated copoly(carbosiloxane)s (Ⅴ-Ⅵ) with high molecular weights. Ⅰ-Ⅲ were also reacted with α,ω-diaminoalkanes (a-c) to form cross-linked networks or films (Ⅶa-c, Ⅷa-c, and Ⅸa-c). Mechanical, surface, and thermal properties of these were studied. Anti-foul and foul-release properties of the films were evaluated by settlement and removal tests with spores of the green alga, Ulva. These films represent a novel class of epoxies with an unusual combination of properties: high flexibility, low T_g, hydrophobic surfaces, and good thermal stability.
机译:硅氧烷和氟化聚合物的性能的理想组合可以通过制备氟化共聚(碳硅氧烷)来实现。制备了一系列新型的非氟化(Ⅰ)和氟化的α,ω-双(环氧丙氧基丙基)-五硅氧烷(Ⅱ-Ⅲ),然后与哌嗪共聚形成定义明确的非氟化(IV)和氟化的共聚(硅氧烷)高分子量的)(Ⅴ-Ⅵ)。 Ⅰ-Ⅲ还与α,ω-二氨基链烷(a-c)反应形成交联的网络或薄膜(Ⅶa-c,Ⅷa-c和Ⅸa-c)。研究了这些材料的机械,表面和热性能。通过用绿藻类Ulva的孢子的沉降和去除测试,评价了膜的防污和防污性能。这些薄膜代表了新型环氧树脂,具有非凡的性能组合:高柔韧性,低T_g,疏水表面和良好的热稳定性。

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