化工新型材料
化工新型材料
화공신형재료
NEW CHEMICAL MATERIALS
2010年
4期
91-93
,共3页
王泽%祁黎炎%熊玉兵%王鸿%王荣民%王云普
王澤%祁黎炎%熊玉兵%王鴻%王榮民%王雲普
왕택%기려염%웅옥병%왕홍%왕영민%왕운보
两亲性聚合物%离子液体%聚ε-己内酯%稀土催化剂
兩親性聚閤物%離子液體%聚ε-己內酯%稀土催化劑
량친성취합물%리자액체%취ε-기내지%희토최화제
amphiphilic polymer%ionic liquid%poly(ε-caprolactone)%rare earth chloride
以无水氯化稀土/环氧氯丙烷为催化剂,催化ε-己内酯开环聚合,所得聚己内酯可通过大分子改性在分子链中引入离子液体,从而制备两亲性可降解生物材料.系统地探讨了不同稀土氯化物,环氧氯丙烷/稀土氯化物比值,聚合温度,时间及单体浓度等条件对聚合反应的影响.用FT-IR、GPC、~1H-NMR和热分析等对聚合物结构和性能进行了表征,并对ε-己内酯开环聚合机理进行了分析.
以無水氯化稀土/環氧氯丙烷為催化劑,催化ε-己內酯開環聚閤,所得聚己內酯可通過大分子改性在分子鏈中引入離子液體,從而製備兩親性可降解生物材料.繫統地探討瞭不同稀土氯化物,環氧氯丙烷/稀土氯化物比值,聚閤溫度,時間及單體濃度等條件對聚閤反應的影響.用FT-IR、GPC、~1H-NMR和熱分析等對聚閤物結構和性能進行瞭錶徵,併對ε-己內酯開環聚閤機理進行瞭分析.
이무수록화희토/배양록병완위최화제,최화ε-기내지개배취합,소득취기내지가통과대분자개성재분자련중인입리자액체,종이제비량친성가강해생물재료.계통지탐토료불동희토록화물,배양록병완/희토록화물비치,취합온도,시간급단체농도등조건대취합반응적영향.용FT-IR、GPC、~1H-NMR화열분석등대취합물결구화성능진행료표정,병대ε-기내지개배취합궤리진행료분석.
Amphiphllic poly(ε-capmlactone)was prepared by two steps.First,poly(ε-caprolactone)were synthesized by the binary catalytic system,anhydrous rare earth chloride/epichlorohydrin,then the resulted polymers were reacted with 1-methyl imidazolium to obtain the amphiphilic polymer.This new amphiphilic PCL was hopefully used as drug sustained-release matrix.Different conditions of the polymerization reaction,such as rare earth chlorides,ECH/LnCl_3molar ratio,temperature,time and monomer concentration were investigated.The polymers were characterized by FT-IR,~1HNMR,GPC,DTA and TG measures.And polymerization mechanism of CL was analyzed by ~1H-NMR.
