Microstructure in Polyether-ester and Polyether-urethane Block Copolymers: Electric Polarization and X-ray Diffraction as Morphological Probes |
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Page 229
... polyether crystallization was observed during cooling in Q1 through Q7 because the crystallization kinetics might be very slow relative to the cooling scan rate , 5 K / min , a set of isothermal crystallization experiments was carried ...
... polyether crystallization was observed during cooling in Q1 through Q7 because the crystallization kinetics might be very slow relative to the cooling scan rate , 5 K / min , a set of isothermal crystallization experiments was carried ...
Page 241
... polyether crystallization occurs during the heating scan while at 5 K / min , most crystallization occurs during cooling . The overall amount of polyether crystal formed , as judged by the area inside the melting endotherm , does not ...
... polyether crystallization occurs during the heating scan while at 5 K / min , most crystallization occurs during cooling . The overall amount of polyether crystal formed , as judged by the area inside the melting endotherm , does not ...
Page 258
... polyether crystallites , showing that it is not the formation of stable crystallites , but rather motions in the rubbery phase which are precursory to crystallization that give rise to the transition . & " In the case of Q9 a maximum ...
... polyether crystallites , showing that it is not the formation of stable crystallites , but rather motions in the rubbery phase which are precursory to crystallization that give rise to the transition . & " In the case of Q9 a maximum ...
Contents
THE CONDENSATION BLOCK COPOLYMER LITERATURE | 8 |
Schematic representation of different types of hard | 19 |
THE MEASUREMENT OF INTERFACIAL POLARIZATION | 30 |
20 other sections not shown
Common terms and phrases
amorphous phase analysis approximately average block copolymers calculated calorimetry component composition crystalline phase decreasing degree of polymerization dielectric spectroscopy differential scanning calorimetry diffraction lines DSC traces equation exhibit films frequency glass transition temperature gradients heat of fusion heating traces homopolymer hydrogen bonding increasing integral isotropic lamellae lattice Lilaonitkul maxima measured melting endotherm melting point microdomains microscopy microstructures modulus mold molecular weight N/cm² nucleation number-average paracrystalline parameters permittivity poly(tetramethylene polyester polyester crystallites polyether crystallization polyether melting polyether segments polyether sequences polymers polyurethane segments polyurethane sequences primary transition PTMEG PTMO PTMO-PTMT PTMT reaction regions rubbery plateau sample SAXS scanning scattering angle scattering patterns segment lengths segmented polyesters segmented polyether-esters segmented polyether-urethanes segmented polyurethanes shown in Figure spectra spectrometer spherulites Subaudio subcooling superlattice Table temperature range thermal thermoplastic elastomers urethane values volume fraction weight fraction X-ray diffraction X-ray scattering