【正文】
,而且分子中缺少極性基團(tuán),因此,改善sPS的抗沖擊性能,提高其極性一直是廣大科技工作者致力解決的課題。關(guān)鍵詞:間規(guī)聚苯乙烯,改性,接枝,共聚, 指導(dǎo)老師簽名:Progress in Modification of Syndiotactic PolystyreneStudent name: Dong dong Chen Class:0881021 Supervisor: Zhong WeiAbstract: Syndiotactic polystyrene (sPS) is a new engineer polymer. Which has been prepared by metallocence catalysts .Compared with the general polystyrene,sPS has many excellent properties, such as high melting point (about270℃),high degree of crystallinity and rapid crystallization ra