Total for the last 12 months
number of access : ?
number of downloads : ?
ID 115969
Title Alternative
HYDROGEN-BONDING INTERACTION IN DBI POLYMERIZATION
Author
Higashi, Kousuke Tokushima University
Seno, Makiko Tokushima University
Keywords
di-n-butyl itaconate
13C-NMR
chain-transfer reaction
radical polymerization
hydrogen bond
tacticity
Content Type
Journal Article
Description
We have reported that intramolecular chain-transfer reaction takes place in radical polymerization of itaconates at high temperatures and/or at low monomer concentrations. In this paper, radical polymerizations of di-n-butyl itaconate (DBI) were carried out in toluene at 60°C in the presence of amide compounds. The 13C NMR spectra of the obtained poly(DBI)s indicated that the intramolecular chain-transfer reaction was suppressed as compared with in the absence of amide compounds. The NMR analysis of DBI and N-ethylacetamide demonstrated both 1:1 complex and 1:2 complex were formed at 60°C through a hydrogen-bonding interaction. The ESR analysis of radical polymerization of diisopropyl itconate (DiPI) was conducted in addition to the NMR analysis of the obtained poly(DiPI). It was suggested that the suppression of the intramolecular chain-transfer reaction with the hydrogen-bonding interaction was achieved by controlling the conformation of the side chain at the penultimate monomeric unit of the propagating radical with an isotactic stereosequence.
Journal Title
Journal of Polymer Science Part A : Polymer Chemistry
ISSN
0887624X
10990518
NCID
AA1068915X
AA11624127
Publisher
Wiley
Volume
42
Issue
19
Start Page
4895
End Page
4905
Published Date
2004-08-25
Rights
This is the peer reviewed version of the following article: Hirano, T., Higashi, K., Seno, M. and Sato, T. (2004), Reaction control in radical polymerization of di‐n‐butyl itaconate utilizing a hydrogen‐bonding interaction. J. Polym. Sci. A Polym. Chem., 42: 4895-4905., which has been published in final form at https://doi.org/10.1002/pola.20293. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Author
departments
Science and Technology