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 38
... Nucleation occurs between polyurethane segments on chains c and d . II . Crystallization , non - crystalline hydrogen bonding and entanglements cause the domain to grow . III . Kinematic forces are transmitted along the chains ...
... Nucleation occurs between polyurethane segments on chains c and d . II . Crystallization , non - crystalline hydrogen bonding and entanglements cause the domain to grow . III . Kinematic forces are transmitted along the chains ...
Page 282
... nucleation Due to the lack of long , continuous PTMO sequences , crystallization occurs only at very large undercoolings . In fact , there is some evidence that that nucleations may may occur as relaxations in the glassy state ...
... nucleation Due to the lack of long , continuous PTMO sequences , crystallization occurs only at very large undercoolings . In fact , there is some evidence that that nucleations may may occur as relaxations in the glassy state ...
Page 293
... nucleation and growth . In order to follow the kinetics , it will be necessary to measure scattering patterns at closely spaced times . This may necessitate the use the use of brilliant synchrotron X- radiation coupled with a solid ...
... nucleation and growth . In order to follow the kinetics , it will be necessary to measure scattering patterns at closely spaced times . This may necessitate the use the use of brilliant synchrotron X- radiation coupled with a solid ...
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