Reduced phase separation and slowing of dynamics in polyurethanes with three-dimensional POSS-based cross-linking moieties
KN Raftopoulos, S Koutsoumpis, M Jancia… - …, 2015 - ACS Publications
Octa-OH-functional POSS has been incorporated into a model polyurethane elastomer as a
comparatively massive and notionally “robust” 3-dimensional cross-linking core. The effects
of this cross-linking moiety on the morphology and molecular dynamics of the system are
studied over a range of size and time scales. Microscopy, scattering, spectroscopic, thermal,
and dielectric techniques, in agreement with each other, show that the covalent inclusion of
the cross-linking particles restricts microphase separation, inhibits the formation of hard …
comparatively massive and notionally “robust” 3-dimensional cross-linking core. The effects
of this cross-linking moiety on the morphology and molecular dynamics of the system are
studied over a range of size and time scales. Microscopy, scattering, spectroscopic, thermal,
and dielectric techniques, in agreement with each other, show that the covalent inclusion of
the cross-linking particles restricts microphase separation, inhibits the formation of hard …
[引用][C] Reduced Phase Separation and Slowing of Dynamics in Polyurethanes with Three-Dimensional POSS-Based Cross-Linking Moieties
K Stefanos, J Małgorzata, K Konstantinos, H Edyta… - 2015
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