高弹性自愈水凝胶(C3H5O)1CB[7]-PAA的制备及性能
CIESC Journal, 2018, 69(12): 5326-5331 ·5326·
化工学报 2018年 第69卷 第12期 | https://www.wendangku.net/doc/536983776.html,
DOI ：10.11949/j.issn.0438-1157.20180398
高弹性自愈水凝胶(C 3H 5O)1CB[7]/PAA 的制备及性能
杨琴1，赵娜1，房春娟1，赵军凯1，王文东2
（1西安建筑科技大学化学与化工学院，陕西 西安 710055；2西安建筑科技大学环境与市政工程学院，
陕西 西安 710055）
摘要：用丙烯氧基七元瓜环((C 3H 5O)1CB[7])替代传统的交联剂N ,N -亚甲基双丙烯酰胺(BIS)制备了新型丙烯氧基七
元瓜环/聚丙烯酸凝胶（(C 3H 5O)1CB[7]/PAA gel ），该凝胶具有高弹性和自愈性。采用IR 和1H NMR 技术对其结构
进行表征，研究了该水凝胶的溶胀、力学性能，宏观观察了其自愈性能。结果表明：(C 3H 5O)1CB[7]/PAA gel 的网
络形成作用力主要是多重氢键；在丙烯酸(AA) 17.2%，水 82.1%，(C 3H 5O)1CB[7] 0.33%，过硫酸钾(KPS) 0.33% 时
该水凝胶具有良好的自愈性及力学性能，其最大伸长量为105.6 cm ，为原长的86倍，弹性模量0.39 kPa ，平衡溶
胀率是600%。该水凝胶有望成为一种潜在的生物组织工程材料。
关键词：丙烯酸；自愈水凝胶；凝胶；聚合物；制备
中图分类号：O 632.51 文献标志码：A 文章编号：0438—1157（2018）12—5326—06
Preparation and mechanical properties of novel (C 3H 5O)1CB[7]/PAA hydrogel
with high elasticity and self-healing properties
YANG Qin 1, ZHAO Na 1, FANG Chunjuan 1, ZHAO Junkai 1, WANG Wendong 2
(1College of Chemistry and Chemical Engineering , Xi ’an University of Architecture and Technology , Xi ’an 710055, Shaanxi , China ;
2School of Environmental Engineering , Xi ’an University of Architecture and Technology , Xi ’an 710055, Shaanxi , China )
Abstract: A novel type of propenyloxy cucurbituril[7]/polyacrylic hydrogel ((C 3H 5O)1CB[7]/PAA gel) with high elasticity and self-healing properties was fabricated by making use of propenyloxy cucurbituril[7] to replace N ,N -methylene-bis-acrylamide(BIS) , which is a traditional cross-linking agent. The structure of the hydrogel was characterized by IR and 1H NMR. The swelling and mechanical properties of the hydrogel were studied, and the self-healing properties were observed macroscopically. The results show that multiple hydrogen bonds was considered as the mainly force in the formation of (C 3H 5O)1CB[7]/PAA gel’s network. The hydrogel has excellent self-healing and mechanical properties in acrylic acid(AA 17.2%, water 82.1%, propenyloxy cucurbituril[7] ((C 3H 5O)1CB[7]) 0.33%, potassium persulfate(KPS) 0.33%. The maximum elongation of (C 3H 5O)1CB[7]/PAA gel is 105.6 cm (86 times the original length) and the elastic modulus is 0.39 kPa, and the equilibrium swelling ratio is 600%. (C
3H 5O)1CB[7]/PAA gel would be a potential bio-tissue engineering material.
Key words: acrylic acid; self-healing hydrogel; gel; polymers; preparation
2018-04-12收到初稿，2018-09-06收到修改稿。
联系人及第一作者：杨琴（1974—），女，博士，副教授。
基金项目：陕西省教育厅专项科研计划项目(17JK0432)；陕西省重大
科技成果转化引导专项项目(2016KTCG01-17). Received date: 2018-04-12. Corresponding author: YANG Qin, 1004240879@https://www.wendangku.net/doc/536983776.html, Foundation item: supported by the Science and Technology Overall Plan of Shaanxi Province (17JK0432) and the Special Project of
Transformation and Guidance of Major Scientific and Technological
Achievements in Shaanxi (2016KTCG01-17).
万方数据