高弹性自愈水凝胶(C3H5O)1CB[7]/PAA的制备及性能

doi:10.11949/j.issn.0438-1157.20180398

化工学报 ›› 2018, Vol. 69 ›› Issue (12): 5326-5331.DOI: 10.11949/j.issn.0438-1157.20180398

• 材料化学工程与纳米技术 • 上一篇下一篇

高弹性自愈水凝胶(C₃H₅O)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

收稿日期:2018-04-12 修回日期:2018-09-06 出版日期:2018-12-05 发布日期:2018-12-05
通讯作者: 杨琴
基金资助:
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）.

Preparation and mechanical properties of novel (C₃H₅O)₁CB[7]/PAA hydrogel with high elasticity and self-healing properties

YANG Qin¹, ZHAO Na¹, FANG Chunjuan¹, ZHAO Junkai¹, WANG Wendong²

1. College of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China;
2. School of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China

Received:2018-04-12 Revised:2018-09-06 Online:2018-12-05 Published:2018-12-05
Supported by:
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).

摘要/Abstract

摘要：

用丙烯氧基七元瓜环（（C₃H₅O）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（（C₃H₅O）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：（C₃H₅O）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%，（C₃H₅O）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

Abstract:

A novel type of propenyloxy cucurbituril [7]/polyacrylic hydrogel ((C₃H₅O)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 and¹H 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 (C₃H₅O)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] ((C₃H₅O)₁CB [7]) 0.33%, potassium persulfate(KPS) 0.33%. The maximum elongation of (C₃H₅O)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%. (C₃H₅O)₁CB[7]/PAA gel would be a potential bio-tissue engineering material.

Key words: acrylic acid, self-healing hydrogel, gel, polymers, preparation

中图分类号:

O632.51

杨琴, 赵娜, 房春娟, 赵军凯, 王文东. 高弹性自愈水凝胶(C₃H₅O)₁CB[7]/PAA的制备及性能[J]. 化工学报, 2018, 69(12): 5326-5331.

YANG Qin, ZHAO Na, FANG Chunjuan, ZHAO Junkai, WANG Wendong. Preparation and mechanical properties of novel (C₃H₅O)₁CB[7]/PAA hydrogel with high elasticity and self-healing properties[J]. CIESC Journal, 2018, 69(12): 5326-5331.

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高弹性自愈水凝胶(C₃H₅O)₁CB[7]/PAA的制备及性能

Preparation and mechanical properties of novel (C₃H₅O)₁CB[7]/PAA hydrogel with high elasticity and self-healing properties

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