CYCLIC POLYETHERS

Authors
SUN T YU GE PRICE C BOOTH C COOKE J RYAN AJ
Citation
T. Sun et al., CYCLIC POLYETHERS, Polymer, 36(19), 1995, pp. 3775-3778
Citations number
18
Categorie Soggetti
Polymer Sciences
Journal title
Polymer → ACNP
ISSN journal
00323861
Volume
36
Issue
19
Year of publication
1995
Pages
3775 - 3778
Database
ISI
SICI code
0032-3861(1995)36:19<3775:CP>2.0.ZU;2-G
Abstract
A range of cyclic poly(oxyethylene)s, (OCH2CH2)(m), With ($) over bar m in the range 23-68, corresponding to rings of 69-204 chain atoms, ha ve been prepared by a modified to sylation method that gave c. 75 wt% yields. Gel permeation chromatography and nuclear magnetic resonance w ere used to monitor the cyclization and purification procedures. Small -angle X-ray studies provided a useful method of characterizing the av erage molar mass of the cyclics.