@article{oai:nagasaki-u.repo.nii.ac.jp:00016363, author = {Kojio, Ken and Mitsui, Yoshitaka and Furukawa, Mutsuhisa}, issue = {15}, journal = {Polymer}, month = {Jul}, note = {Highly hydrophilic polyurethane elastomers (PUEs) were synthesized from 1,2-bis(isocyanate) ethoxyethane (TEGDI), poly(ethylene oxide-co-propylene oxide) copolyol (EOPO) and 1,4-butane diol/1,1,1-trimethylol propane (75/25) (wt/wt) by a prepolymer method. 4,4′-Diphenylmethane diisocyanate (MDI)-based PUEs were synthesized as a control as well. Fourier transform infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC) measurements revealed that the degree of microphase separation of the TEGDI-based PUEs was much weaker than for the MDI-based PUEs. Young's modulus and elongation at break of the TEGDI-based PUEs were quite lower and larger than for the MDI-based PUEs, respectively. This is due to quite weak cohesion force of the hard segment chains in the TEGDI-based PUEs. The degree of swelling of the TEGDI-based PUEs was five times larger than for the MDI-based one. This is associated with the hydrophilic nature of TEGDI and weak cohesion force in the TEGDI-based PUEs., Polymer, 50(15), pp.3693-3697; 2009}, pages = {3693--3697}, title = {Synthesis and properties of highly hydrophilic polyurethane based on diisocyanate with ether group}, volume = {50}, year = {2009} }