超临界二氧化碳介质中苯乙烯-丁二烯-苯乙烯嵌段共聚物与丙烯酸的接枝反应

李春生　 张书香　 郑安呐　

Grafting of acrylic acid onto styrene-butadiene-styrene tri-block copolymer in supercritical carbon dioxide

Li Chunsheng（College of Material Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;College of Chemistry and Chemical Engineering, Jinan University, Jinan 250022, China）　 Zhang Shuxiang（College of Chemistry and Chemical Engineering, Jinan University, Jinan 250022, China）　 Zheng Anna（College of Material Science and Engineering, East China University of Science and Technology, Shanghai 200237, China）　

　　Styrene-butadiene-styrene tri-block copolymer (SBS) can be grafted by polar olefine monomers to expand its application. Supercritical CO2 has many advantages as reaction medium，such as nontoxic, nonflammable, chemical inert, inexpensive. Moreover, using supercritical CO2 will avoid using poisonous solvent. In this work, the grafting of acrylic acid (AA) onto SBS in supercritical CO2 was carried out.……