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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 constantCTof some CTAs towardsN‐acryloylmorpholine has been estimated to be approximately 1.
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Ranucci et al. (1994) studied this question.
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