摘要
以偶氮二异丁腈(AIBN)为引发剂,由大分子单体己内酯改性丙烯酸酯(FA)、甲基丙烯酸甲酯(MMA)和亲水性单体丙烯酸(AA)在N,N-二甲基甲酰胺(DMF)中通过自由基共聚反应得到双亲性类接枝共聚物(MAF)。将MAF与可生物降解均聚物聚己内酯(PCL)在水溶液中进行自组装,形成以MAF中PFA链段与PCL为核、MAF中PAA链段为壳的核壳结构复合纳米胶束,进一步对PAA壳进行化学交联,最终得到具有核壳结构的复合纳米微球。动态激光光散射(DLS)和透射电子显微镜(TEM)结果显示胶束为球形,粒径在100nm左右且呈窄分布,有一定的核壳结构。
The amphiphilic pseudo-graft copolymer MAF were synthesized by free radical copolymerization of macromonomer FA,MMA and hydrophilic AA using 2,2′-azobisisobutyrnitrile(AIBN)as a free radical initiator in DMF.The new approach for the preparation of the MAF/PCL micelles by self-assembly of a core-shell structure in aqueous solution with PFA chain fragment and PCL as the core and PAA chain fragment in MAF to form complex nanosize micelles and can be further crosslinked to get core-shell structure nanoparticles finally.DLS and TEM results show the micelles are spherical with narrow size-distribution and around 100 nm diameter.The micelles are composed with core-shell morphology.
出处
《日用化学工业》
CAS
CSCD
北大核心
2004年第1期1-4,共4页
China Surfactant Detergent & Cosmetics
基金
国家自然科学基金资助项目(50273006)
