Page 74 - 《精细化工》2022年第7期

第 39 卷第 7 期 精 细 化 工 Vol.39, No.7
2022 年 7 月 FINE CHEMICALS July 2022

功能材料
水溶性 Janus 型 POSS 的制备及对

PAA/PAM 水凝胶性能的影响

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张晓静，冯文博，刘 博，卫王冲，樊凯奇
（郑州轻工业大学 材料与化学工程学院 河南省表界面科学重点实验室，河南 郑州 450001）

摘要：利用丙烯酰氧丙基多面体低聚倍半硅氧烷（Acrylo-POSS）和 3-巯基-1-丙烷磺酸盐（MPS）之间的巯基
点击反应，一步合成水溶性 Janus 型多面体低聚倍半硅氧烷（AS-POSS）。通过改变投料比可以调控 AS-POSS
的水溶性和双键与磺酸钠基团的物质的量比。将 AS-POSS 与丙烯酸（AA）和丙烯酰胺（AM）共聚制备了一系
列不同AS-POSS含量的AS-POSS/PAA/PAM水凝胶，其中AS-POSS质量占单体总质量1%的AS-POSS/ PAA/PAM
水凝胶的平衡溶胀比为 512.0，断裂伸长率为 1074%，压缩强度为 583 kPa，屈服应变为 330%，均大于对照组以
N,N′-亚甲基双丙烯酰胺（MBA）为交联剂的 PAA/PAM 水凝胶。结果表明，AS-POSS 的引入显著提高了水凝胶
的溶胀度，明显增强了水凝胶的韧性、抗压缩性能和动态力学性能。AS-POSS/PAA/PAM 水凝胶具有良好的导
电性，离子电导率最高可达 0.401 S/m。
关键词：多面体低聚倍半硅氧烷；巯基点击化学；水溶性单体；Janus 型；丙烯酸；丙烯酰胺；功能材料
中图分类号：TQ427.26；TQ264.17 文献标识码：A 文章编号：1003-5214 (2022) 07-1360-09

Preparation of water-soluble Janus-type POSS and
its effect on properties of PAA/PAM hydrogel

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ZHANG Xiaojing, FENG Wenbo, LIU Bo, WEI Wangchong, FAN Kaiqi
（Henan Provincial Key Laboratory of Surface and Interface Science, College of Material and Chemical Engineering,
Zhengzhou University of Light Industry, Zhengzhou 450001, Henan, China）

Abstract: Hydrophilic Janus-type polyhedral oligomeric silsesquioxane (AS-POSS) was synthesized via
one step thiol-ene click reaction of acryloxy propyl polyhedral oligomeric silsesquioxane (Acrylo-POSS)
and 3-mercapto-1-propane sulfonate (MPS), of which the water solubility and the molar ratio of double
bond to sodium sulfonate group was controlled by changing the feed ratio. Next, a series of AS-POSS/
PAA/PAM hydrogels with different AS-POSS contents were prepared through copolymerization of
AS-POSS with acrylic acid (AA) and acrylamide (AM). It was found that AS-POSS/PAA/PAM hydrogel
with 1% AS-POSS to the total monomer mass showed an equilibrium swelling ratio of 512.0, elongation at
break of 1074%, compressive strength of 583 kPa and yield strain of 330%, which were all higher than
those of the control MBA/PAA/PAM hydrogel. The results demonstrated that the introduction of AS-POSS
to the hydrogel significantly improved its performance in swelling, toughness, compression resistance and
dynamic mechanics. Moreover, AS-POSS/PAA/PAM hydrogel displayed excellent electrical conductivity
with the highest up to 0.401 S/m.
Key words: polyhedral oligomeric silsesquioxane; thiol click chemistry; water-soluble monomers; Janus-
type; acrylic acid; acrylamide; functional materials

收稿日期：2022-01-12; 定用日期：2022-03-09; DOI: 10.13550/j.jxhg.20220041
基金项目：国家自然科学基金项目（U1704160，20804041）；河南省自然科学基金（202300410502）
作者简介：张晓静（1978—），女，博士，教授，E-mail：zhangxj@iccas.ac.cn。联系人：樊凯奇（1985—），男，博士，副教授，E-mail：
benlto@163.com。