Polyethylene End Functionalization Using Radical-Mediated Thiol鈭扙ne Chemistry: Use of Polyethylenes Containing Alkene End Functionality

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• 作者：Je虂ro虃me Mazzolini ; Olivier Boyron ; Vincent Monteil ; Didier Gigmes ; Denis Bertin ; Franck D鈥橝gosto ; Christophe Boisson
• 刊名：Macromolecules
• 出版年：2011
• 出版时间：May 10, 2011
• 年：2011
• 卷：44
• 期：9
• 页码：3381-3387
• 全文大小：864K
• 年卷期：v.44,no.9(May 10, 2011)
• ISSN：1520-5835

文摘

Synthesis of highly end-functionalized polyethylene chains was accomplished using both coordination chemistry and radical mediated thiol鈭抏ne chemistry. A vinyl end-terminated polyethylene (M_n =1440 g路mol^鈭?, PDI = 1.8) with a functionalization rate of 100% was synthesized using a P,O-chelated catalyst [Ni{Ph₂PC(COOEt)鈺怌(C₆H₅)O}Ph(PPh₃)]. Thiol鈭抏ne reactions were subsequently undertaken between vinyl-terminated polyethylene and the thiol-containing molecules thioglycolic acid, 2-mercaptoethanol, 1-thioglycerol, chloropropanethiol, and methyl thioglycolate. A range of end-functionalized polyethylenes was thus prepared using simple reaction conditions and exhibiting degrees of functionalization higher than 93%.