Microstructure in Polyether-ester and Polyether-urethane Block Copolymers: Electric Polarization and X-ray Diffraction as Morphological Probes |
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Page 83
... integral gold electrodes were applied to the sample . After two weeks of air High exposure , the sample was placed in a roughing pump vacuum for 48 hours at 297 K. This drying technique proved insufficient . conductivity due to absorbed ...
... integral gold electrodes were applied to the sample . After two weeks of air High exposure , the sample was placed in a roughing pump vacuum for 48 hours at 297 K. This drying technique proved insufficient . conductivity due to absorbed ...
Page 112
... integral breadths B free from broadening artifacts could be calculated from integral sample breadths B1 and interpolated integral standard breadths B2 ( Wang , 1980 ) : B = B1 - B2 , where the integral breadth is calculated as : Bi = SI ...
... integral breadths B free from broadening artifacts could be calculated from integral sample breadths B1 and interpolated integral standard breadths B2 ( Wang , 1980 ) : B = B1 - B2 , where the integral breadth is calculated as : Bi = SI ...
Page 113
... integral breadth is appropriate for calculating either B1 or B2 ° The range of integration should contain all perceptible diffracted intensity associated with the particular line . Where lines tend to overlap , it is better to fit the ...
... integral breadth is appropriate for calculating either B1 or B2 ° The range of integration should contain all perceptible diffracted intensity associated with the particular line . Where lines tend to overlap , it is better to fit the ...
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