Zwitterionic copolymer-based and hydrogen bonding-strengthened self-healing hydrogel

Self-healing systems that can spontaneously repair their damage would significantly improve the safety and prolong the lifetime of man-made materials. As external energy or healing agents are required in most of the self-healing approaches, non-covalently cross-linked polymeric hydrogels with intrin...

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Bibliographic Details
Published in:RSC advances 2015-01, Vol.5 (42), p.3383-3388
Main Authors: Liu, He, Xiong, Chunming, Tao, Zhen, Fan, Yujiao, Tang, Xiaofen, Yang, Haiyang
Format: Article
Language:English
Subjects:
Bonding
Copolymers
Crosslinking
Enhanced oil recovery
Healing
Hydrogels
Hydrogen bonding
Strategy
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Summary:Self-healing systems that can spontaneously repair their damage would significantly improve the safety and prolong the lifetime of man-made materials. As external energy or healing agents are required in most of the self-healing approaches, non-covalently cross-linked polymeric hydrogels with intrinsic healing nature have attracted much attention recently. We present here a P(AM- co -DMAPS) zwitterionic copolymer based self-healing hydrogel, where AM and DMAPS are acrylamide and 3-((2-(methacryloyloxy)ethyl)dimethylammonio)propane-1-sulfonate, respectively. The electrostatic interactions within DMAPS and hydrogen bonding between AM moieties contribute to the physical cross-linking of the polymer chains and self-healing ability of the hydrogel. The reported strategy represents a general and facile route to construct zwitterionic copolymer based self-healable functional hydrogels for potential applications in the field of enhanced oil recovery (EOR). We report here a zwitterionic copolymer based non-covalently cross-linked hydrogel with intrinsic self-healing nature for potential use in enhanced oil recovery.
ISSN:2046-2069
2046-2069
DOI:10.1039/c4ra15003a