双亲性无规-类接枝共聚物PAF的合成及表征  

Synthesis and Characterization of an Amphiphilic Random Copolymer of PAF

作　　者：刘晓亚 陶友华 陈明清 杨成 杨淑丽 江明[2] 

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214036 [2]复旦大学高分子科学系,上海200433

出　　处：《江南大学学报（自然科学版）》2002年第3期263-265,共3页Joural of Jiangnan University (Natural Science Edition)　

基　　金：国家自然科学基金 (5 0 1730 0 6 )资助课题 .

摘　　要：以偶氮二异丁腈为引发剂 ,亲水性单体丙烯酸、亲油性大分子单体FA 3[CH2 =CHCOOCH2 CH2 (OCOCH2 CH2 CH2 CH2 CH2 ) 3OH]在乙醇 /水的混合溶剂中进行自由基共聚 ,合成了双亲性无规共聚物 ,用红外光谱仪、凝胶色谱仪、差式扫描量热仪对共聚物的结构进行了表征 .研究了单体配比对共聚物的相对分子质量 (Mn)和玻璃化转变温度 (Tg)的影响 .结果表明 ,随着单体中FA 3含量的增加 ,Mn 及Tg 均下降 .观察了投料比、反应时间、反应温度及引发剂用量对反应转化率的影响 .结果表明 ,投料比对转化率影响最大 .该双亲性共聚物在醇 /水混合溶剂中可自组装成胶束 ,用透射电镜表征了胶束的形态 .PAF was synthesized by free radical copolymerization of FA 3[CH 2=CHCOOCH 2CH 2 (OCOCH 2CH 2CH 2CH 2CH 2) 3OH] with acrylic acid using AIBN as a free radical initiator in ethanol/water mixed solvents. The characterizations of copolymer were measured by IR、GPC and DSC. The effects of the ratio of monomer, the amount of initiator and reaction temperature on conversion of copolymerization have been investigated. Results show that the ratio of monomer affected conversion mostly. Meanwhile, the solution of copolymer in ethanol/water mixed solvents could form micelles,whose morphology has been characterized by transmission electron microscopy.

关 键 词：接枝共聚物 PAF 合成 双亲性 无规共聚物 自组装 胶束形态 结构 表征 自由基公聚法 

分 类 号：O631[理学—高分子化学]