Page 83 - 《精细化工》2023年第8期

第 40 卷第 8 期 精 细 化 工 Vol.40, No.8
20 23 年 8 月 FINE CHEMICALS Aug. 2023

功能材料
NIPAM 改性 PEDOT:PSS 导电聚合物

的制备及在电致变色器件中的应用

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汤 朋 ，韦 铭 ，孙靖江 ，张旭阳 ，
钱海宁 1,3 ，王向伟 1,3
（1. 哈尔滨工程大学 材料科学与化学工程学院，黑龙江 哈尔滨 150001；2. 青岛科技大学 高分子科学
与工程学院，山东 青岛 266045；3. 哈尔滨工程大学 青岛创新发展中心，山东 青岛 266400）

摘要：以柔性疏水小分子 N-异丙基丙烯酰胺（NIPAM）对聚苯乙烯磺酸盐（PSS）进行共聚改性，制备了一系
列聚[(苯乙烯磺酸盐)-共-异丙基丙烯酰胺]〔P(SS-co-NIPAM)〕，并以其为模板采用氧化聚合法与 3,4-乙烯二氧
噻吩（EDOT）制备了导电聚合物 PEDOT:P(SS-co-NIPAM)。与 PEDOT:PSS 薄膜相比，NIPAM 摩尔分数（以对
苯乙烯磺酸钠物质的量为基准，下同）为 15%时，PEDOT:P(SS-co-NIPAM)薄膜平均透光率保持在 80%左右，水
接触角从 18.5°增至 39.0°，疏水性提高，并且弯曲 1000 次后方阻变化量为 5.71 kΩ/sq，远小于 PEDOT:PSS 薄膜
（10.60 kΩ/sq）。以 NIPAM 摩尔分数为 15%的 PEDOT:P(SS-co-NIPAM)薄膜作为离子储存层的电致变色器件的
光学对比度（ΔT）为 9.83%，循环 800 次后 ΔT 仍达到 9.55%，衰减量为 0.28%，衰减量与 PEDOT:PSS 器件相当，
说明 NIPAM 共聚改性能改善 PEDOT:PSS 导电聚合物的柔韧性和疏水性，以其作为离子储存层的器件可维持优
异的电致变色性能。
关键词：聚 3,4-乙烯二氧噻吩；电致变色；柔韧性；疏水性；导电聚合物；功能材料
中图分类号：O631.2 文献标识码：A 文章编号：1003-5214 (2023) 08-1697-07

Preparation of NIPAM modified PEDOT:PSS conductive polymer
and its application in electrochromic device

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TANG Peng , WEI Ming , SUN Jingjiang , ZHANG Xuyang ,
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QIAN Haining , WANG Xiangwei
（1. College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001,
Heilongjiang, China; 2. School of Polymer Science and Engineering, Qingdao University of Science & Technology,
Qingdao 266045, Shandong, China; 3. Qingdao Innovation and Development Center, Harbin Engineering University,
Qingdao 266400, Shandong, China）
Abstract: A series of poly(styrene sulfonate-co-isopropylacrylamide) P(SS-co-NIPAM) copolymers were
synthesized from copolymerization of flexible hydrophobic molecule N-isopropylacrylamide (NIPAM) with
polystyrene sulfonate (PSS), and used as a template to fabricate conductive polymer PEDOT:
P(SS-co-NIPAM) via oxidative polymerization with 3,4-ethylenedioxythiophene (EDOT). When compared
with PEDOT:PSS film, the film obtained with NIPAM content (based on the molar ratio of sodium styrene
sulfonate, the same below) of 15%, exhibited a transmittance of about 80%, an increase of water contact
from 18.5° to 39.0°, an improvement in hydrophobicity, and a change of 5.71 kΩ/sq in square resistance
after being bended 1000 times, which was much smaller than that of PEDOT:PSS film (10.60 kΩ/sq). The
optical contrast (ΔT) of the electrochromic device made with PEDOT:P(SS-co-NIPAM) film containing
15% NIPAM was 9.83%, and was only reduced by 0.28% to 9.55% after 800 cycles, which was
comparable to that of the device with PEDOT:PSS film as ion storage layer. The results indicated that

收稿日期：2022-10-12; 定用日期：2023-01-28; DOI: 10.13550/j.jxhg.20220938
基金项目：电磁环境效应与光电工程国家级重点实验室资助项目（61422062108）
作者简介：汤 朋（1994—），男，博士生，E-mail：1055319337@qq.com。联系人：张旭阳（1989—），男，讲师，E-mail：xuyangz@hrbeu.edu.cn。