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Polymer-Bound Thiol Groups on Poly(2-oxazoline)s

✍ Scribed by Sonia Cesana; Alexander Kurek; Markus A. Baur; Jörg Auernheimer; Oskar Nuyken

Book ID
102494448
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
187 KB
Volume
28
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

A new 2‐oxazoline monomer with a protected thiol group, 2‐[2‐(4‐methoxybenzylsulfanyl)ethyl]‐2‐oxazoline, MOB‐SOx, was synthesized from commercially available compounds. MOB‐SOx and 2‐ethyl‐2‐oxazoline (EtOx) were simultaneously polymerized yielding well defined copolymers with narrow molar mass distributions and target polymer chain length. The copolymerization was initiated by N‐methyl‐2‐methyl‐2‐oxazolinium triflate (MeOxOTf). After quantitative deprotection, poly(2‐oxazoline) with pendant thiol groups was obtained. The thiol groups were quantitatively added to the double bond of N‐phenyl‐acrylamide (PhA) and benzylmaleimide (BzM). Graft copolymers were obtained by reaction of those SH containing polymers with poly(2‐methyl‐2‐oxazoline)s bearing acrylamide (PMeOx~10~A) and maleimide (PMeOx~10~M) as terminal reactive groups.

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