23 Jul Polyester elastomer and preparation method thereof
Abstract
The invention relates to a polyester elastomer and a preparation method thereof. The xylitol base polyester elastomer is obtained by adopting a melting polycondensation method with xylitol as a main elastomer and itaconic acid, succinic acid, dodecanedioic acid, hexadecanedioic acid, octadecyl diacid and octadecadienoic acid as comonomers. The elastomer has higher biocompatibility and biodegradability and low toxicity; the xylitol belongs to a polyhydroxyl monomer; when the xylitol copolymerized with other monomers, the xylitol can adjust the crosslinking density of a polymer by changing the category and composition of the comonomer, thereby realizing controllable performance; and accordingly, the polymer has a wide application range. The invention has the advantages of simple preparation method, no catalyst and simple post treatment, and the obtained polyester elastomer has high biocompatibility; by controlling monomer molar ratio and reaction condition, the mechanical performance, hydrophobic performance and water absorption rate of the material can be adjusted; and the material is expected to be used as a medicament slow-release carrier, a styptic preparation, bone wax, a tissue engineering bracket, a surgical operation anti-adhesion film, and the like.
Year: 2010
Country: CN
Doc No: 101906207