Synthesis and properties of siloxane(ethylene oxide)urethane block copolymers

A new approach to the synthesis of hydrolytically stable dimethylsiloxane-ethylene oxide polyblock copolymers is described, in which ethylene oxide and siloxane blocks are linked by urethane groups. The molecular-mass parameters of block copolymers of different compositions are determined by capilla...

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Bibliographic Details
Published in:	Polymer science. Series B Vol. 52; no. 5-6; pp. 346 - 352
Main Authors:	Makarova, L. I., Filimonova, L. V., Dubrovina, L. V., Buzin, M. I., Nikiforova, G. G., Zavin, B. G., Papkov, V. S.
Format:	Journal Article
Language:	English
Published:	Dordrecht SP MAIK Nauka/Interperiodica 01-06-2010
Subjects:	Block copolymers Chemistry Chemistry and Materials Science Chromatography Copolymers Differential scanning calorimetry Ethylene oxide Oxides Polymer Sciences Synthesis Viscometry Polymer Science Series Molecular Mass Distribution Ethylene Oxide Block Copolymer PDMS
Online Access:	Get full text
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Summary:	A new approach to the synthesis of hydrolytically stable dimethylsiloxane-ethylene oxide polyblock copolymers is described, in which ethylene oxide and siloxane blocks are linked by urethane groups. The molecular-mass parameters of block copolymers of different compositions are determined by capillary viscometry, light scattering, and gel-permeation chromatography. The temperature transitions in copolymers are characterized by differential scanning calorimetry.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1560-0904 1555-6123
DOI:	10.1134/S1560090410050118