Surface Engineering of Porous Carbon for Self-Healing Nanocomposite Hydrogels by Mussel-Inspired Chemistry and PET-ATRP

• DOI: 10.1021/acsami.9b12264
• Publication Date: 2019-09-19T16:40:21Z
• Authors: Dechao Fan; Guanglin Wang; Anyao Ma; Wenxiang Wang; Hou Chen; Liangjiu Bai; Huawei Yang; Donglei Wei; Lixia Yang
• Keywords: Biocompatibility; Atom-transfer radical-polymerization; Surface Modification

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 are introduced into self-healing hydrogels to enhance their mechanical strength. The PCNs synthesized a simple soft template method mixed linseed oil for loading of the biomass healing agent, first coating PDA. PDA coatings used immobilize ATRP initiator initiating 4-vinylpyridine on surface PET-ATRP. Using these microcapsules, efficiency was about 92.5% after 4 h at ambient temperature healed tensile strength can be held 2.5 MPa fracture strain 625.2%. All results indicated that have remarkable biocompatibility properties.