Zobrazeno 1 - 10
of 110
pro vyhledávání: '"F. Rybnikar"'
Autor:
M. Kaszonyiova, F. Rybnikar
Publikováno v:
Journal of Macromolecular Science, Part B. 58:248-262
The phase II to I transformation process of isotactic polybutene – 1 (iPB-1) is influenced by the environment besides the usual physical factors. The phase II → I transformation rate depend...
Publikováno v:
Materiali in Tehnologije
The electron β-irradiation of isotactic polypropylene (iPP) influenced the sample chemical structure because it mostly caused the crosslinking of the polymer chains beside the macromolecule degradation. The irradiation effect led to the correspondin
Publikováno v:
Journal of Macromolecular Science, Part B. 51:926-945
The beta irradiation of polybutene-1 (PB-1) and its random copolymers with ethylene results in sample degradation without chain cross-linking. The crystal structures of both homopolymer and ethylene copolymers were phase I (I), except that for sample
Publikováno v:
Journal of Macromolecular Science, Part B. 51:685-697
The bulk melt polycondensation of 2,6-acetoxynaphthoic acid [poly (2,6-oxynaphthoate) (P-ON)] at temperatures below 250°C made it possible to prepare P-ON samples with phase II content approaching 100%. The structure, morphology, and melting behavio
Publikováno v:
Journal of Macromolecular Science, Part B. 50:16-25
Microscopical, differential scanning colorimetry (DSC), and X-ray structural investigations of solution crystallized carbon nanotube (CNT) composites with linear polyethylene (LPE), isotactic polypropylene (iPP), polybutene-1 (PB-1), and nylon 6 (PA6
Publikováno v:
Journal of Macromolecular Science, Part B. 48:562-572
The effect of added mineral sheet fillers (mica, montmorillonite, talc, graphite and kaolin) on the polymerization of acetoxybenzoic acid was investigated. The fillers exert a weak catalytic effect without affecting the structure and orientation of t
Publikováno v:
Journal of Macromolecular Science, Part B. 46:195-205
The morphology and structure of bulk poly‐butene‐1 phase III samples dried from concentrated solutions is independent of the solvent used for sample preparation. The lamellar spherulitic morphology is similar to that of PB‐1 samples prepared by
Publikováno v:
Journal of Macromolecular Science, Part B. 44:377-396
The conditions for reliable preparation of bulk PB‐1 samples in form III were established. The crystal structure of solution‐prepared PB‐1 samples was measured by X‐ray diffraction as a function of solvent used, solution concentration, temper
Publikováno v:
Journal of Macromolecular Science, Part B. 43:1095-1114
The isothermal crystallization and phase II → I transformation of bulk polybutene‐1 at various temperatures have been characterized by x‐ray diffraction. The crystallization rate can be increased or decreased by the addition of various solids,
Publikováno v:
Acta Physica Polonica A. 122:569-571