Synthesis of poly(methylmethacrylate) macromonomers prepared by radical chain transfer reaction HNMR study of macromonomer end-groups

Authors
Loubat, C Soulier, S Boutevin, B
Citation
C. Loubat et al., Synthesis of poly(methylmethacrylate) macromonomers prepared by radical chain transfer reaction HNMR study of macromonomer end-groups, POLYM BULL, 45(6), 2001, pp. 487-494
Citations number
29
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER BULLETIN
ISSN journal
01700839 → ACNP
Volume
45
Issue
6
Year of publication
2001
Pages
487 - 494
Database
ISI
SICI code
0170-0839(200101)45:6<487:SOPMPB>2.0.ZU;2-A
Abstract
The end-group analysis for both PMMA telomers having a carboxyl end-group a nd macromonomers derived from these telomers was carried out using H-1 NMR. Telomers were prepared by telomerization of methyl methacrylate (MMA) with thioglycolic acid (TGA) initiated with 2,2' azobis(isobutyronitrile) (AIBN ) in acetonitrile at 70 degreesC. Then, macromonomers were obtained by reac tion of the telomer carboxylic acid end-group with glycidyl methacrylate (G MA) using a chromium salt as catalyst. From the H-1 NMR study, it was found that the telomer/macromonomer conversion results from two ways of epoxy ad dition (alpha and beta), as observed in a model reaction between GMA and oc tanoic acid (OA).