Studies on the heterogeneity of St/DVB copolymers by phenyl aggregate fluorescence

• 作 者: 王国昌 叶彦春 高焕 何炳林 栗凤珍 高传喜
• 机 构: Institute of Polymer Chemistry,Nankai University,Tianjin 300071,China,Experimental Centre,Tianjin No
• 出 处: Science in China(Series B)
• 发表日期: 1995年09期
• 关键词: copolymer aggregate heterogeneity beads resultant polymerization reactivity bond

A new method for characterizing St/DVB copolymer heterogeneity by phenyl aggregatefluorescence has been developed and used to study the effects of crosslinking degree,crosslinker and diluent onthe heterogeneity of the copolyruer gels.The results show that St/m-DVB copolymer gel is more homogeneousin structure than St/p-DVB copolymer gel,whereas increasing crosslinking degree and the proportion of goodsolvent in diluent lead to an increase of gel heterogeneity.These results provide structural evidence which mayserve as a bridge between St/DVB crosslinking reaction and the copolymer properties.

A new method for characterizing St / DVB copolymer heterogeneity by phenyl aggregate fluid has been developed and used to study the effects of crosslinking degree, crosslinker and diluent on the heterogeneity of the copolyruer gels. The results show that St / m-DVB copolymer gel is more homogeneous in structure than St / p-DVB copolymer gel, the ascending crosslinking degree and the proportion of goodsolvent in diluent lead to an increase of gel heterogeneity.These results provide structural evidence which mayserve as a bridge between St / DVB crosslinking reaction and the copolymer properties.