Microstructure in Polyether-ester and Polyether-urethane Block Copolymers: Electric Polarization and X-ray Diffraction as Morphological Probes |
From inside the book
Results 1-3 of 16
Page 92
... volume fraction . is the amorphous phase density . D100 is the average crystal thickness in the [ 100 ] the [ 100 ] ... fraction from the fraction of intensity diffracted into crystalline reflections . X - ray scattering powder patterns ...
... volume fraction . is the amorphous phase density . D100 is the average crystal thickness in the [ 100 ] the [ 100 ] ... fraction from the fraction of intensity diffracted into crystalline reflections . X - ray scattering powder patterns ...
Page 108
... volume fraction : and : V2 = W2 ( P / P2 ) , = P1 ( p - V2P2 ) / ( 1 - v2 ) , where V2 = the crystalline phase volume fraction , W2 = the crystalline phase mass fraction , p = the macroscopic density , and P2 1 = = the crystalline phase ...
... volume fraction : and : V2 = W2 ( P / P2 ) , = P1 ( p - V2P2 ) / ( 1 - v2 ) , where V2 = the crystalline phase volume fraction , W2 = the crystalline phase mass fraction , p = the macroscopic density , and P2 1 = = the crystalline phase ...
Page 135
... volume fraction is known from Table 4-1 and in the present case the A's depend only on г3 / 1 . r3 / r1 ° Similarly , the low - frequency limit of ε ' depends on the same quantities . The high and low frequency limits of ε ' are ...
... volume fraction is known from Table 4-1 and in the present case the A's depend only on г3 / 1 . r3 / r1 ° Similarly , the low - frequency limit of ε ' depends on the same quantities . The high and low frequency limits of ε ' are ...
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