Facile grafting of bioactive cellulose derivatives onto PVC surfaces

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• 作者：S ; ra Bigot ; Guy Louarn ; Nasreddine K¨¦bir ; Fabrice Burel
• 关键词：PVC ; Methyl cellulose ; Hydroxyethyl cellulose ; Surface modification
• 刊名：Applied Surface Science
• 出版年：2013
• 出版时间：15 October, 2013
• 年：2013
• 卷：283
• 期：Complete
• 页码：411-416
• 全文大小：754 K

文摘

Bioactive methyl cellulose and hydroxyethyl cellulose were successfully grafted onto PVC films using a two-step pathway. PVC surface was first modified with isothiocyanate in DMSO/water medium. Then, unmodified polysaccharides were directly grafted onto the thiocyanated surface in acetonitrile/DMSO mixture, in presence of DBTL as catalyst. The polysaccharide grafting onto the PVC surface was evidenced by contact angle measurements, AFM and XPS.