Novel polyetherurethaneurea elastomers based on α,α,α′,α′-tetramethyl-m-xylenediisocyan ate

Synthesis, characterization, processability, and hydrolytic stability

Pathiraja A. Gunatillake, Gordon F. Meijs, Ezio Rizzardo, Simon McCarthy, Ronald C. Chatelier, Arthur Brandwood, Klaus Schindhelm

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A series of novel polyetherurethaneurea elastomers based on m-TMXDI, polyether macrodiols containing 4, 6, 8, or 10 methylene groups between the ether linkages, and aliphatic and aromatic diamines was prepared by two-step solution polymerization. All the materials were thermally processable at 120-160°C except one that was solvent-castable. Mechanical properties and hydrolytic stability (at neutral pH) were found to depend on the macrodiol and chain extender. Poly(tetramethylene oxide)-based polyetherurethaneureas that were chain-extended with primary aliphatic diamines, other than 1,3-propanediamine, exhibited significantly better mechanical properties than those chain-extended with secondary aliphatic or aromatic diamines. The mechanical properties and hydrolytic stability of polyetherurethaneureas containing poly(hexa-, octa-, or decamethylene oxide) and 1,6-hexamethylenediamine were considerably better than those containing 1,2-ethylenediamine. The hydrolytic stability increased with the increasing C/O ratio of the macrodiol. With poly(hexamethylene oxide)-based materials, the phase separation between soft and hard domains was higher than that of the other materials as determined by DSC.

Original languageEnglish (US)
Pages (from-to)199-210
Number of pages12
JournalJournal of Applied Polymer Science
Volume47
Issue number2
DOIs
StatePublished - 1993
Externally publishedYes

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Elastomers
Diamines
1,6-diaminohexane
ethylenediamine
Mechanical properties
Oxides
Polyethers
Phase separation
Ether
Ethers
Polymerization

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Novel polyetherurethaneurea elastomers based on α,α,α′,α′-tetramethyl-m-xylenediisocyan ate : Synthesis, characterization, processability, and hydrolytic stability. / Gunatillake, Pathiraja A.; Meijs, Gordon F.; Rizzardo, Ezio; McCarthy, Simon; Chatelier, Ronald C.; Brandwood, Arthur; Schindhelm, Klaus.

In: Journal of Applied Polymer Science, Vol. 47, No. 2, 1993, p. 199-210.

Research output: Contribution to journalArticle

Gunatillake, Pathiraja A. ; Meijs, Gordon F. ; Rizzardo, Ezio ; McCarthy, Simon ; Chatelier, Ronald C. ; Brandwood, Arthur ; Schindhelm, Klaus. / Novel polyetherurethaneurea elastomers based on α,α,α′,α′-tetramethyl-m-xylenediisocyan ate : Synthesis, characterization, processability, and hydrolytic stability. In: Journal of Applied Polymer Science. 1993 ; Vol. 47, No. 2. pp. 199-210.
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AU - Schindhelm, Klaus

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