Polyurethanes from 4,4 '-diphenylmethane diisocyanate and poly(oxyethylene) glycols. I. Preparation and general properties

Authors
Vatalis, AS Kehayoglou, AH
Citation
As. Vatalis et Ah. Kehayoglou, Polyurethanes from 4,4 '-diphenylmethane diisocyanate and poly(oxyethylene) glycols. I. Preparation and general properties, J MACR S PU, 38(7), 2001, pp. 673-680
Citations number
18
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY
ISSN journal
10601325 → ACNP
Volume
38
Issue
7
Year of publication
2001
Pages
673 - 680
Database
ISI
SICI code
1060-1325(2001)38:7<673:PF4'DA>2.0.ZU;2-D
Abstract
Linear polyurethanes (PU) from 4,4'-diphenylmethane diisocyanate and an equ imolar quantity of poly(oxyethylene) glycol (PEG) of various molecular weig ht (106, 200, 400, 1000, 2000, and 4000) were obtained by polymerization us ing 4-methylpentanone-2 as solvent at 115 degreesC. Alternative reaction co nditions and melt polymerization were also applied. Samples were characteri zed by elemental analysis, solubility, I.R. spectroscopy, DSC (T-m, T-g), [ n] and (M) over bar (n) (osmotic). The results are correlated with the mole cular weight of PEG and discussed.