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

YANG Qin; ZHAO Na; FANG Chunjuan; ZHAO Junkai; WANG Wendong

doi:10.11949/j.issn.0438-1157.20180398

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

更新时间：2025-12-10

- Preparation and mechanical properties of novel (C₃H₅O)₁CB[7]/PAA hydrogel with high elasticity and self-healing properties
- CIESC Journal Issue 12, Pages: 5326-5331(2018)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180398
  CLC： 632.51
- Online First：05 December 2018，
  
  Published：05 December 2018
- 稿件说明：
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YANG Qin, ZHAO Na, FANG Chunjuan, et al. Preparation and mechanical properties of novel (C₃H₅O)₁CB[7]/PAA hydrogel with high elasticity and self-healing properties[J]. CIESC Journal, 2018, (12): 5326-5331. DOI: 10.11949/j.issn.0438-1157.20180398.
DOI：

YANG Qin, ZHAO Na, FANG Chunjuan, et al. Preparation and mechanical properties of novel (C₃H₅O)₁CB[7]/PAA hydrogel with high elasticity and self-healing properties[J]. CIESC Journal, 2018, (12): 5326-5331. DOI: 10.11949/j.issn.0438-1157.20180398. DOI：

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。

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.

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