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以季戊四醇为核的星形聚(D,L-乳酸)的合成与表征 被引量:7

Synthesis of Star-shaped Poly(D,L-lactic acid) Using Pentaerythritol as a Core
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摘要 以廉价易得的D,L-乳酸和季戊四醇为原料,采用直接熔融聚合法合成了以季戊四醇为核的星形聚(D,L-乳酸)(3,Mw5200~20100),Tg均低于线形聚(D,L-乳酸)。3的结构经^1H NMR,FT-IR,GPC和XRD表征。 Star-shaped poly ( D, L-lactic acid) (3, Mw 5 200 - 20 100) was synthesized by directly melt polycondensation from D, L-lactic acid using pentaerythritol as a core. The structure of 3 was characterized by ^1H NMR, FT-IR, GPC and XRD. The results showed that Tg of 3 was lower than that of linear poly( D, L-lactic acid).
出处 《合成化学》 CAS CSCD 2008年第2期166-169,共4页 Chinese Journal of Synthetic Chemistry
基金 广东省自然科学基金博士科研启动基金资助项目(5300082)
关键词 直接熔融聚合法 星形聚(D L-乳酸) 季戊四醇 合成 direct melt polyeondensation star-shaped poly(D,L-lactic acid) pentaerythritol synthesis
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