نوع مقاله: تالیفی
نویسندگان
1 زنجان، دانشگاه تحصیلات تکمیلی علوم پایه زنجان، دانشکده شیمی، صندوق پستی 1159-45195
2 هیات علمی/دانشگاه تحصیلات تکمیلی علوم پایه زنجان
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Self-healing materials can spontaneously repair cracks or fractures themselves that this property increases their service life. Propagation of the microcracks in polymer structures may leads to material failure, so the research on self-healing polymeric materials have attracted significant attention. The fundamental mechanism for self-healing polymeric materials involves reversible damage-restoring bonds. Usually external stimuli is required to repair the damaged bonds and self-healing process. There is a number of influential parameters on self-healing behaviors, including healing efficiency (a ratio of mechanical property measured after and before healing), healing rate, healing times at the same fracture point, and storage time (after which the broken parts still show the healing property). Host-guest interactions occur when two or more chemical species interact with each other via non-covalent bonds. In supramolecular host-guest interactions, one moiety (the guest) is physically inserted to another moiety (the host) and is held together by non-covalent interactions. Since the interactions are reversible, polymer networks constructed by such interactions can exhibit self-healing properties. Cyclodextrins are suitable resources for preparation of the host-guest interactions because of their biocompatibility, good solubility and the ability for chemical surface modification. The purpose of this paper is to investigate the characteristics, mechanisms and different methods for synthesis of self-healing polymer hydrogels.
کلیدواژهها [English]
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