PROPERTIES OF POLYURETHANE ELASTOMERS BASED ON POLY (OXYETHYLENE-co-OXYTETRAMETHYLENE) DIOL*

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PROPERTIES OF POLYURETHANE ELASTOMERS BASED ON POLY (OXYETHYLENE-co-OXYTETRAMETHYLENE) DIOL*

Papers | Updated：2021-06-21

- PROPERTIES OF POLYURETHANE ELASTOMERS BASED ON POLY (OXYETHYLENE-co-OXYTETRAMETHYLENE) DIOL*
- Vol. 19, Issue 4, Pages: 371-376(2001)
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- Published：20 August 2001
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PROPERTIES OF POLYURETHANE ELASTOMERS BASED ON POLY (OXYETHYLENE-co-OXYTETRAMETHYLENE) DIOL*[J]. 2001, 19(4): 371-376.
DOI：

PROPERTIES OF POLYURETHANE ELASTOMERS BASED ON POLY (OXYETHYLENE-co-OXYTETRAMETHYLENE) DIOL*[J]. 2001, 19(4): 371-376. DOI：

摘要

Polyurethane elastomers derived from 4

4'-methylene bis(phenyl isocyanate)

butylene glycol and the lowoxyethylene moiety content copolyether of tetrahydrofuran and ethylene oxide

obtained by copolymerization usingheteropolyacid-ethylene oxide initiator system

were prepared. The polyurethanes exhibited an increased water absorptionand much better low temperature resilience

which remained high even at a temperature of -3℃

while that of polyurethanebased upon poly(tetramethylene ether) glycol of the same molecular weight

i.e. being 2000

and molecular weight distribution

i.e.in the range of 1.4-1.5

starts to decrease dramatically at 5℃.

Abstract

Polyurethane elastomers derived from 4

4'-methylene bis(phenyl isocyanate)

butylene glycol and the lowoxyethylene moiety content copolyether of tetrahydrofuran and ethylene oxide

obtained by copolymerization usingheteropolyacid-ethylene oxide initiator system

were prepared. The polyurethanes exhibited an increased water absorptionand much better low temperature resilience

which remained high even at a temperature of -3℃

while that of polyurethanebased upon poly(tetramethylene ether) glycol of the same molecular weight

i.e. being 2000

and molecular weight distribution

i.e.in the range of 1.4-1.5

starts to decrease dramatically at 5℃.

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