MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
J Colloid Interface Sci. 2013 Jan 15;390(1):105-13. doi: 10.1016/j.jcis.2012.09.055. Epub 2012 Oct 2.
We report the synthesis of a new monomer, 9,9-diethylfluoren-2-yl methyl methacrylate (FMMA) and its controlled reversible addition-fragmentation chain transfer (RAFT) homopolymerization to give PFMMA with narrow polydispersity indices (PDIs). The corresponding copolymerization with 2-(N,N-dimethylamino)ethyl methacrylate (DMAEMA) also gave well-defined block and random copolymers with controlled molecular weights and narrow PDIs. Their thermal behavior, UV-Vis absorption, and photoluminescent properties were studied. The PDMAEMA-b-PFMMA amphiphilic block copolymers showed self-assembly into aqueous spherical micellar nanoparticles with uniform size. The PFMMA core showed photoluminescence when carrying dichloromethane "guest" molecules and its emission was shown to be quenched after the release of the guest.
我们报告了一种新单体 9,9-二乙基芴-2-基甲基甲基丙烯酸酯（FMMA）的合成及其可控的可逆加成-断裂链转移（RAFT）均聚合，得到具有较窄多分散指数（PDI）的 PFMMA。与 2-（N，N-二甲基氨基）乙基甲基丙烯酸酯（DMAEMA）的相应共聚也得到了具有可控分子量和较窄 PDI 的定义明确的嵌段和无规共聚物。研究了它们的热行为、紫外-可见吸收和光致发光性质。PDMAEMA-b-PFMMA 两亲嵌段共聚物在水溶液中自组装成具有均匀尺寸的球形胶束纳米粒子。当 PFMMA 核携带二氯甲烷“客体”分子时，它表现出光致发光，并且在释放客体后，其发射被猝灭。
