PREPARATION AND CHARACTERIZATION OF LARGE ETHER-ESTER RINGS

Authors
WOOD BR SEMLYEN JA HODGE P
Citation
Br. Wood et al., PREPARATION AND CHARACTERIZATION OF LARGE ETHER-ESTER RINGS, Polymer, 38(9), 1997, pp. 2287-2290
Citations number
20
Categorie Soggetti
Polymer Sciences
Journal title
Polymer → ACNP
ISSN journal
00323861
Volume
38
Issue
9
Year of publication
1997
Pages
2287 - 2290
Database
ISI
SICI code
0032-3861(1997)38:9<2287:PACOLE>2.0.ZU;2-8
Abstract
Cyclic oligomers of tetraethyleneglycol succinate [O(CH2CH2O)(4).CO.(C H2)(2).CO](x) were prepared by a ring-chain reaction. The cyclic produ cts were characterized in full. Cyclic oligomers with up to eight repe al units were fractionated using preparative gel permeation chromatogr aphy to give narrow molar mass fractions with polydispersities of 1.03 . The fraction consisting of the monomeric ring only was found to crys tallize readily, enabling its X-ray crystal structure to be determined . (C) 1997 Elsevier Science Ltd.