새로운 생분해성 아이오너머의 전기방사에 관한 연구

초록

In last two decades, biodegradable polyester has been studied extensively due to their biodegradability, biocompatibility and physical or chemical properties in order to replace non-biodegradable polymers that cause environmental problems. One of the most promising biodegradable polyesters, poly(butylene succinate)(PBS) was commercialized but its applications were restricted due to its poorer mechanical properties. To improve its rheological and mechanical properties, poly(butylene succinate) ionomer(PBSi) had been introduced. In addition, it had been reported that PBSi had a great potential for some medical applications. On the other hand, it has been manifested that the electrospinning is an attractive method to fabricate micron to nano sized structures for various polymers which have high specific surface areas. Numerous polymers have been fabricated into nano sized structures by electrospinning. Moreover, it has been recently informed the electrospinning of PBS. It is well known that the interconnected porous structure is much more favorable for the biomaterials compared with the film with smooth surface. Therefore, it can be said that the porous PBSi nano-web not noly has some possibility as biomaterials but also overcomes some shrtcomings of the nonporous structured materials. In this study, we prepared the PBSi with two-step polymerization including esterification and subsequent polycondensation reaction and then fabricated the PBSi nano-web by electrospinning. As we know, the electrospinning of ionomers has been few reported as well as it is first fabricated the PBSi nano-web by means of electrospinning. The electrospun PBSi nano-web would have great potential to extend its practical usages in multifarious application fields such as filters, catalyses, protecting clothes, implants, and tissue engineering, and so on.