Abstract
| Original language | Undefined |
|---|---|
| Pages (from-to) | 887-894 |
| Journal | Macromolecular materials and engineering |
| Volume | 293 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2008 |
Keywords
- IR-68973
- METIS-254527
Cite this
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Polyurethanes with narrow- and polydisperse hard segment distributions. / De, D.; Gaymans, R.J.
In: Macromolecular materials and engineering, Vol. 293, No. 11, 2008, p. 887-894.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Polyurethanes with narrow- and polydisperse hard segment distributions
AU - De, D.
AU - Gaymans, R.J.
PY - 2008
Y1 - 2008
N2 - Polyurethanes with narrow-disperse (ND) and polydisperse (PD) hard segment (HS) distributions were prepared in a two-step process. First, a poly(propylene oxide) end-capped with MDI (4,4methylenebis(phenyl isocyanate) was synthesized. To this prepolymer either a diamine-diamide was added to form ND HSs or a mixture of a diamine-diamide and additional MDI to form PD HSs in the copolymers. The polyurethanes displayed a ribbon-like crystalline morphology, and it was found that the copolymers with ND HSs were more crystalline, had a higher modulus, a less temperature-dependant modulus, and a higher melting temperature than their PD counterparts. Overall, the polyurethanes with the narrow-dispersed HSs displayed superior properties.
AB - Polyurethanes with narrow-disperse (ND) and polydisperse (PD) hard segment (HS) distributions were prepared in a two-step process. First, a poly(propylene oxide) end-capped with MDI (4,4methylenebis(phenyl isocyanate) was synthesized. To this prepolymer either a diamine-diamide was added to form ND HSs or a mixture of a diamine-diamide and additional MDI to form PD HSs in the copolymers. The polyurethanes displayed a ribbon-like crystalline morphology, and it was found that the copolymers with ND HSs were more crystalline, had a higher modulus, a less temperature-dependant modulus, and a higher melting temperature than their PD counterparts. Overall, the polyurethanes with the narrow-dispersed HSs displayed superior properties.
KW - IR-68973
KW - METIS-254527
U2 - 10.1002/mame.200800147
DO - 10.1002/mame.200800147
M3 - Article
VL - 293
SP - 887
EP - 894
JO - Macromolecular materials and engineering
JF - Macromolecular materials and engineering
SN - 1438-7492
IS - 11
ER -