Synthesis of highly isotactic Poly(N,N-diethylacrylamide) by anionic polymerization with grignard reagents and diethylzinc

Authors
Kobayashi, M Ishizone, T Nakahama, S
Citation
M. Kobayashi et al., Synthesis of highly isotactic Poly(N,N-diethylacrylamide) by anionic polymerization with grignard reagents and diethylzinc, J POL SC PC, 38, 2000, pp. 4677-4685
Citations number
31
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN journal
0887624X → ACNP
Volume
38
Year of publication
2000
Supplement
S
Pages
4677 - 4685
Database
ISI
SICI code
0887-624X(2000)38:<4677:SOHIPB>2.0.ZU;2-L
Abstract
N,N-Dimethylacrylamide (DMA) and N;N-diethylacrylamide (DEA) were polymeriz ed with various Grignard reagents in tetrahydrofuran at -78 degreesC in the presence of diethylzinc (Et2Zn). Highly isotactic poly(DEA) was produced i n quantitative yield with tert-butylmagnesium bromide and Et2Zn, whereas at actic poly(DEA) was generated in the absence of Et2Zn. No stereospecific po lymerization of DMA proceeded with Grignard reagent in the presence of Et2Z n. The highly isotactic poly(DEA) obtained was soluble in water and showed the characteristic coil-globule transition phenomenon. (C) 2000 John Wiley & Sons, Inc.