期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 41, 页码 38126-38135出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b12264
关键词
Mussel-inspired chemistry; PET-ATRP; Porous carbon; Microcapsules; Self-healing hydrogels
资金
- National Natural Science Foundation of China [51773086, 51573075]
- Key Technology Research and Development Program of Shandong Province [2019GGX102012]
- Key Program for Basic Research of Natural Science Foundation of Shandong Province [ZR2018ZC0946]
- Project of Shandong Province Higher Educational Science [J16LC20, J18KA080]
In this work, surface-functionalized microcapsules from porous carbon nanospheres (PCNs) were successfully prepared by mussel-inspired chemistry with polydopamine (PDA) and metal-free photoinduced electron transfer atom transfer radical polymerization (PET-ATRP). These functional microcapsules are introduced into self-healing hydrogels to enhance their mechanical strength. The PCNs synthesized by a simple soft template method are mixed with linseed oil for loading of the biomass healing agent, and the microcapsules are first prepared by coating PDA. PDA coatings were used to immobilize the ATRP initiator for initiating 4-vinylpyridine on the surface of microcapsules by PET-ATRP. Using these functional microcapsules, the self-healing efficiency was about 92.5% after 4 h at ambient temperature and the healed tensile strength can be held at 2.5 MPa with a fracture strain of 625.2%. All results indicated that the surface-functionalized microcapsules for self-healing hydrogels have remarkable biocompatibility and mechanical properties.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据