Page 48 - 201811

第 35 卷第 11 期 精 细 化 工 Vol.35, No.11
2018 年 11 月 FINE CHEMICALS Nov. 2018

功能材料
聚氨酯-聚丙烯酰胺复合荧光水凝胶的

合成及其性能

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张良良 ，郭晓燕 ，郑 俐 ，黄毅萍 ，许戈文 ，鲍俊杰 ，程 芹
（1. 安徽大学 化学化工学院，安徽省绿色高分子材料重点实验室，安徽 合肥 230601；2. 合肥燃气集
团有限公司，安徽 合肥 230075）
摘要：以不同相对分子质量聚乙二醇为软段，引入 N,N-二羟乙基苯胺--三联吡啶（TPPDA）荧光分子，原位聚
合制备了 3 种荧光水性聚氨酯（FWPU1~3）；将丙烯酰胺（AM）引入 FWPU 中，制备了一系列不同 AM 添加
量的聚氨酯-聚丙烯酰胺复合荧光水凝胶（FWPUH1~6）。采用 FTIR、固体紫外吸收和荧光光谱表征了 TPPDA
和复合荧光水凝胶的结构及荧光性能。结果表明，相比 TPPDA，复合荧光水凝胶的主要紫外吸收峰发生红移，
最大荧光发射波长蓝移，荧光发射强度明显增强；且随着软段 PEG 相对分子质量的增大以及 AM 加入量的增加，
样品的荧光强度增大。FWPU3 和 AM 质量比为 5∶4（FWPUH6）时，水凝胶荧光强度最大，与 TPPDA 相比，
荧光强度增加约 9.5 倍，荧光量子产率也提升了近 56%；FWPUH3 达到最大平衡溶胀比，为 9.95；FWPUH2 的
压缩强度最大（0.70 MPa）；FWPUH2 和 FWPUH5 的软段玻璃化转变温度和硬段玻璃化转变温度分别为–32.1、
–46.0 ℃和 96.5、105.7 ℃。
关键词：N,N-二羟乙基苯胺--三联吡啶；荧光；水性聚氨酯；水凝胶；功能材料
中图分类号：O631.5 文献标识码：A 文章编号：1003-5214 (2018) 11-1834-08

Synthesis and Properties of Polyurethane-Polyacrylamide
Composite Fluorescence Hydrogels

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ZHANG Liang-liang , GUO Xiao-yan , ZHENG Li , HUANG Yi-ping ,
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XU Ge-wen , BAO Jun-jie , CHENG Qin
（1. Key Laboratory of Green Polymer Materials of Anhui Province, College of Chemistry and Chemical Engineering,
Anhui University, Hefei 230601, Anhui, China; 2. Hefei Gas Group Co., Ltd., Hefei 230075, Anhui, China）
Abstract: Three fluorescent waterborne polyurethanes (FWPU1~3) were prepared by in situ polymerization
with different molecular weight polyethylene glycol as soft segment and N,N-dihydroxyethylaniline-β-
terpyridine (TPPDA) as fluorescent molecule. Subsequently, different addition amounts of acrylamide (AM)
were introduced into FWPU main chain to prepare a series of polyurethane-polyacrylamide composite
fluorescent hydrogels (FWPUH1~6). The structure and fluorescence properties of TPPDA and the
synthesized hydrogels were characterized by FTIR, solid UV absorption and fluorescence spectroscopy. The
results showed that the main UV absorption peaks of composite fluorescent hydrogels showed red shifts
compared with that of TPPDA, the maximum fluorescence emission wavelengths showed blue shifts, and
the fluorescence emission intensity increased obviously. Moreover, with the increase of PEG molecular
weight and addition amount of AM, the fluorescence intensity of samples increased. When the mass ratio of
FWPU3 to AM was 5∶4, the synthesized FWPUH6 showed the largest fluorescence intensity, which was
an improvement 9.5 times compared with that of TPPDA, and its fluorescence quantum yield also increased
by 56%. FWPUH3 reached the maximum equilibrium swelling ratio of 9.95. FWPUH2 exhibited the
highest compressive strength (0.70 MPa). The soft segment glass transition temperature and hard segment

收稿日期：2017-09-17; 定用日期：2018-01-30; DOI: 10.13550/j.jxhg.20170751
作者简介：张良良（1992—），男，硕士生，E-mail：liangliangzh@126.com。联系人：黄毅萍（1966—），男，教授，
E-mail：yphuang2001@sina.com。