Induction of periodic nanostructures in polythiophene films through block copolymer templating
Induction of periodic nanostructures in polythiophene films through block copolymer templating
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通过嵌段共聚物模板在聚噻吩薄膜中诱导周期性纳米结构
DOI：
10.1002/pola.29365
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Hayakawa Teruaki
中科院分区：
文献类型：
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作者：
Azuma Koei;Komamura Takahiro;Chandra Alvin;Kato Fuminobu;Nabae Yuta;Hayakawa Teruaki
通过模板嵌段共聚物(BCP)和聚(1，4-异戊二烯)-嵌段-聚甲基丙烯酸(PMA)的协同自组装，制备了一类规整度高、形态多样的周期性纳米结构聚噻吩类材料。选择亲水性和非质子性的三甘醇(TEG)基团作为聚噻吩膜的侧链，以及使用亲水性和质子性的PMA对于在聚噻吩膜中形成有序的纳米结构至关重要，因为它能够通过氢键在亲水性区域内选择性地共组装。小角X射线散射和透射电子显微镜观察表明，复合薄膜形成了周期为28 nm的六边形填充圆柱体。复合膜的傅里叶变换红外光谱中PMA的羰基峰相对于纯膜的位置发生了移动，从而揭示了氢键的形成。这表明三甘醇功能化的聚噻吩选择性地结合到PMA中。2019威利期刊公司J.Polym。科学，A部分：多晶硅。化学，2019，57,1105-1112
A new class of periodically nanostructured polythiophene materials with high regularity and numerous morphologies is prepared through the cooperative self‐assembly of polythiophene derivatives with a templating block copolymer (BCP) and poly(1,4‐isoprene)‐block‐poly(methacrylic acid) (PMA). The selection of the hydrophilic and aprotic triethylene glycol (TEG) group as side chains on polythiophene and the use of hydrophilic and protic PMA are crucial to producing well‐ordered nanostructures in polythiophene films, as it enables selective coassembly within the hydrophilic domain through hydrogen bonding. The composite films are shown to have formed hexagonally packed cylinders with 28 nm periodicities based on small‐angle X‐ray scattering and transmission electron microscopy. The formation of hydrogen bonding is revealed by a shift in the carbonyl peak of PMA in the Fourier transform infrared spectra of the composite film relative to the neat film. This suggests that the TEG‐functionalized polythiophene selectively incorporates into PMA. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem.2019, 57, 1105–1112