Synthesis of well‐defined block copolymer composed of flexible amphiphilic poly(ethylene glycol) and hydrophobic liquid crystalline segments by living coordination polymerization of allene derivatives and its application to thin film with perpendicularly oriented cylindrical nanostructure,Journal of Polymer Science

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Synthesis of well‐defined block copolymer composed of flexible amphiphilic poly(ethylene glycol) and hydrophobic liquid crystalline segments by living coordination polymerization of allene derivatives and its application to thin film with perpendicularly oriented cylindrical nanostructure
Journal of Polymer Science ( IF 3.9 ) Pub Date : 2020-01-22 , DOI: 10.1002/pol.20190165
Koyuki Sakai ₁ , Hiroki Nishiyama ₁ , Shinsuke Inagi ₁ , Ikuyoshi Tomita ₁ , Yusuke Hibi ₂ , Motonori Komura ₃ , Keiji Nose ₂ , Tomokazu Iyoda ₂

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A block copolymer composed of a flexible polar poly(ethylene glycol) (PEG) and a less polar liquid crystalline poly(allene) segments is prepared by the living coordination polymerization of an allene derivative possessing trans‐azobenzene‐containing mesogenic substituent by the use of a π‐allylnickel macroinitiator bearing PEG segment. The thin film of the block copolymer is prepared by the spin coating of its solution onto mica or silicon wafer which proves to possess perpendicularly oriented nanocylindrical microphase separated structures as supported by the differential calorimetric, polarized optical microscopic, grazing‐incidence small‐angle X‐ray scattering, transmission electron microscope, and atomic force microscope measurements.

中文翻译：

丙二烯衍生物的活性配位聚合合成柔性两亲性聚乙二醇和疏水液晶片段的嵌段共聚物及其在垂直取向的圆柱纳米结构薄膜中的应用

由具有极性极性聚乙二醇（PEG）和极性较小的液晶聚丙二烯链段组成的嵌段共聚物是通过使用具有反式偶氮苯的介晶取代基的丙二烯衍生物通过活性配位聚合反应制备的。带有PEG段的π-烯丙基镍大分子引发剂嵌段共聚物的薄膜是通过将其溶液旋涂到云母或硅片上制备的，事实证明它具有垂直取向的纳米圆柱微相分离结构，并通过差示量热，偏振光学显微镜，掠入射小角度X射线散射，透射电子显微镜和原子力显微镜测量。

更新日期：2020-01-22

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