Patternable Conjugated Polymers with Latent Hydrogen-Bonding on the Main Chain

被引：46

作者：

Yang, Kun ^{[1
]}

He, Tianda ^{[1
]}

Chen, Xiaoyi ^{[1
]}

Cheng, Stephen Z. D. ^{[1
]}

Zhu, Yu ^{[1
]}

机构：

[1] Univ Akron, Coll Polymer Sci & Polymer Engn, Dept Polymer Sci, Akron, OH 44325 USA

来源：

MACROMOLECULES | 2014年 / 47卷 / 24期

关键词：

HOLE-TRANSPORT MATERIALS; LITHOGRAPHY; ELECTRONICS; ACID;

D O I：

10.1021/ma501960t

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Conjugated polymers with latent hydrogen-bonding on the main chain were synthesized using Suzuki coupling reaction. The resulting polymers with latent hydrogen-bonding can be converted to the actual hydrogen-bonded polymers by thermal annealing or UV irradiation. As the hydrogen-bonding sites are fused with p-conjugated units on the polymer backbone, the intermolecular interactions between the polymer chains will be strongly enhanced when the hydrogen-bonds are formed. By removing the protection group and forming hydrogen-bonding, the polymers exhibited a bathochromic shift over those with latent hydrogen-bonding, indicating a hydrogen-bonding-mediated enhancement of pp stacking. In addition, the fused hydrogen-bond sites and p-conjugated units led to closely packed polymer chains, resulting in insoluble pigment-like polymers. This drastic solubility change from polymers with latent hydrogen-bonding to hydrogen-bonded polymers can be used to pattern conjugated polymers directly. The photolithography of the conjugated polymer with latent hydrogen-bonding was demonstrated, and the patterned electrochromic devices were fabricated and tested.

引用

页码：8479 / 8486

页数：8

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