Amphiphilic block copolymers with pendant thiol groups in side chains by RAFT polymerization
作者:Emin Hrsic、Iason Zografou、Bjoern Schulte、Andrij Pich、Helmut Keul、Martin Möller
DOI:10.1016/j.polymer.2012.11.059
日期:2013.1
not interfere with the RAFT polymerization process. Polymers with defined molecular weight, narrow polydispersities (PDI < 1.30) and varying length of the hydrophobic block are presented. Polymers with thiol groups in side chains and chain ends are obtained by aminolysis. With pyrene fluorescence spectroscopy and NMR measurements, it is shown that all synthesized polymers self-assemble into micelles
提出了一种新的合成方法,用于硫醇官能团,定义明确的两亲嵌段共聚物,可用于制备多功能聚合物和聚合物纳米颗粒。从亲水的macroRAFT转移剂和具有受保护的硫醇基团的疏水性(甲基)丙烯酸酯单体开始,以高收率制备两亲性嵌段共聚物。业已证明,单体中受保护的硫醇基团不会干扰RAFT聚合过程。提出了具有确定的分子量,窄的多分散性(PDI <1.30)和疏水嵌段长度不同的聚合物。通过氨解获得在侧链和链端具有硫醇基的聚合物。用pyr荧光光谱法和NMR测量表明,所有合成的聚合物都自组装成胶束。此外,