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Synthesis and molecular weight characterization of low molecular weight end-functionalized poly(4-acryloylmorpholine)

✍ Scribed by Elisabetta Ranucci; Gloria Spagnoli; Luciana Sartore; Paolo Ferruti; Paolo Caliceti; Oddone Schiavon; Francesco M. Veronese

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
530 KB
Volume
195
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

New amphiphilic oligomers ending at one side with a reactive function were synthesized by radical polymerization of a vinyl monomer, N‐acryloylmorpholine, in the presence of functionalized chain‐transfer agents (CTAs). The oligomers were characterized in terms of molecular weight and molecular weight distribution, by means of analytical size‐exclusion chromatography (SEC) working in buffered aqueous media. This has been accomplished by determining a calibration curve for a set of SEC columns, with poly(N‐acryloylmorpholine) standards purposely obtained by means of preparative SEC. The transfer constant C~T~ of some CTAs towards N‐acryloylmorpholine has been estimated to be approximately 1.

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