Synthesis and mesomorphic properties of poly(oxyethylene) with [(6-heptylsulfonyl)hexylthio]methyl side groups

Citation
Jc. Lee et al., Synthesis and mesomorphic properties of poly(oxyethylene) with [(6-heptylsulfonyl)hexylthio]methyl side groups, MACRO RAPID, 22(11), 2001, pp. 815-819
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
1022-1336 → ACNP
Volume
22
Issue
11
Year of publication
2001
Pages
815 - 819
Database
ISI
SICI code
1022-1336(20010730)22:11<815:SAMPOP>2.0.ZU;2-E
Abstract
[(6-Heptylsulfonyl)hexylthio]methyl-substituted poly(oxyethylene) bearing a very polar sulfone group in the middle of the alkyl side chain was success fully synthesized by the reaction of poly[oxy(chloromethyl)ethylene] and (6 -heptylsulfonyl)hexyl thioacetate with sodium ethoxide in N,N-dimethylaceta mide. The ordered phase of the polymer was studied using X-ray diffraction, differential scanning calorimetry, and IR spectroscopy. The polymer was fo und to be liquid crystalline, although not having any conventional mesogeni c group. It was suggested that the highly polar sulfone group in the side c hain induces the self-assembly of the liquid crystal-line phase.