Low temperature RAFT/MADIX gel polymerisation: access to controlled ultra-high molar mass polyacrylamides†,10.1039/C3PY01750H

批量搜索

批量搜索

热搜：

Lactoyl-CoA 全氟丁基戊烷白叶藤碱全氟己基辛烷新白叶藤碱壳寡糖特色专题-生物多肽

Low temperature RAFT/MADIX gel polymerisation: access to controlled ultra-high molar mass polyacrylamides†

Emmanuelle Read,Aymeric Guinaudeau,D. James Wilson,Arnaud Cadix,Frédéric Violleau,Mathias Destarac

Polymer Chemistry Pub Date : 01/14/2014 00:00:00 , DOI:10.1039/C3PY01750H

Abstract

We pushed back the limits of molar mass control in aqueous RAFT/MADIX polymerisation through a fast and quantitative gel polymerisation of a series of acrylamido monomers. Unprecedentedly high M_n up to 10⁶ g mol⁻¹ with low dispersities (Đ < 1.2) was achieved in homopolymerisation, statistical and block copolymerisation of a selection of acrylamido monomers such as AM, DMA, AMPS and NIPAM. The reasons for access to an abnormally high kinetic chain length in the presence of a RAFT/MADIX agent are discussed.