TY - JOUR
T1 - Superior Properties of Polyurethane Elastomers Synthesized with Aliphatic Diisocyanate Bearing a Symmetric Structure
AU - Nozaki, Shuhei
AU - Masuda, Shiori
AU - Kamitani, Kazutaka
AU - Kojio, Ken
AU - Takahara, Atsushi
AU - Kuwamura, Goro
AU - Hasegawa, Daisuke
AU - Moorthi, Krzysztof
AU - Mita, Kazuki
AU - Yamasaki, Satoshi
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/2/14
Y1 - 2017/2/14
N2 - Polyurethane elastomers (PUEs) containing trans-1,4-bis(isocyanatomethyl)cyclohexane (1,4-H6XDI) have been synthesized by polymerizing 1,4-H6XDI with poly(oxytetramethylene) glycol and 1,4-butanediol. The molecular aggregation state and mechanical properties of these PUEs have been compared with those exhibited by PUE analogues made of MDI and diols. The hard segment chains in the 1,4-H6XDI-based PUEs are found to readily crystallize and form strong hydrogen bonds due to a high symmetry of 1,4-H6XDI molecule. Consequently, the 1,4-H6XDI-based PUEs exhibit well-organized hard segment domains. This leads to their generally superior mechanical properties as compared to those of the well-known MDI-based PUEs. 1,4-H6XDI’s lack of aromatic moieties is expected to greatly enhance color stability of resulting PUEs. All the above features suggest 1,4-H6XDI could replace MDI in a range of applications.
AB - Polyurethane elastomers (PUEs) containing trans-1,4-bis(isocyanatomethyl)cyclohexane (1,4-H6XDI) have been synthesized by polymerizing 1,4-H6XDI with poly(oxytetramethylene) glycol and 1,4-butanediol. The molecular aggregation state and mechanical properties of these PUEs have been compared with those exhibited by PUE analogues made of MDI and diols. The hard segment chains in the 1,4-H6XDI-based PUEs are found to readily crystallize and form strong hydrogen bonds due to a high symmetry of 1,4-H6XDI molecule. Consequently, the 1,4-H6XDI-based PUEs exhibit well-organized hard segment domains. This leads to their generally superior mechanical properties as compared to those of the well-known MDI-based PUEs. 1,4-H6XDI’s lack of aromatic moieties is expected to greatly enhance color stability of resulting PUEs. All the above features suggest 1,4-H6XDI could replace MDI in a range of applications.
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U2 - 10.1021/acs.macromol.6b02044
DO - 10.1021/acs.macromol.6b02044
M3 - Article
AN - SCOPUS:85012881012
SN - 0024-9297
VL - 50
SP - 1008
EP - 1015
JO - Macromolecules
JF - Macromolecules
IS - 3
ER -