Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Simon W. Kantor"'
Publikováno v:
Fibers and Polymers. 5:83-88
In order to assess the potential of the hydroxy-containing polyamic acid (PHAA) synthesized from 3,3′-dihydroxy benzidine and pyromellitic dianhydride for a fire-safe polymer, the cyclization pathway of PHAA has been investigated using a model comp
Publikováno v:
Fibers and Polymers. 3:91-96
Polyhydroxyamides derivatized with trifluoromethyl ether and trifluoromethyl ester groups were investigated as possible candidates for a new flame retardant polymer. Model compounds for these derivatized polyhydroxyamides were synthesized and their c
Publikováno v:
Macromolecules. 32:3867-3874
Several different liquid crystalline copolyesters were thermally posttreated above their melt transition temperatures to increase their degree of randomness. Both poly(ethoxyphenylene terephthalate-co-ethylene terephthalate)s (poly(EPT-co-ET)) and po
Publikováno v:
Macromolecules. 32:3426-3431
The synthesis of a series of vinyl-substituted silphenylene siloxane polymers of high molecular weight is described. 29Si NMR spectroscopy indicates that the polymers possess an exactly alternating microstructure of the silphenylene and siloxane moie
Publikováno v:
Macromolecules. 31:850-856
Vinyl-substituted silphenylene siloxane elastomers (VSPSEs) with variable vinyl content were synthesized using the disilanol−diaminosilane polycondensation method. High molecular weight elastomers were obtained by using carefully purified monomers.
Publikováno v:
Macromolecules. 30:2825-2838
A series of thermotropic liquid crystalline poly(ester amide)s was synthesized based on various N,N'-dimethylalkylenediamines and terephthaloyl bis(4-oxybenzoyl chloride), TBOC. Several different synthetic procedures were investigated to synthesize l
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 35:197-209
Three series of aromatic, thermotropic copolyesters, based on terephthalic acid (TA), ethylene glycol (EG), and another diol were prepared. The third monomer was selected from three different hydroquinones including, ethoxyhydroquinone (EHQ), phenylh
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 33:1329-1340
Liquid crystalline block copolymers containing different compositions of terephthaloyl bis(4-oxybenzoyl) (triad) mesogen and flexible ethylene terephthalate (ET) units, were synthesized in tetrachloroethane/pyridine (TCE/Py) at 150°C and in 1-chloro
Publikováno v:
Polymer. 36:2463-2466
A series of thermotropic random copolyesters was prepared by the reaction of ethoxydiethyleneoxyhydroquinone and ethylene glycol with terephthaloyl chloride. The purpose of this study was to investigate the effect of the flexible pendent oxyethylene
Publikováno v:
Polymer. 36:2819-2825
Thermotropic liquid crystalline polymers containing bis(p-oxybenzoyl terephthalate) (Triad) mesogen units linked by flexible polymethylene units were prepared by melt and solution polymerization reactions. Analogous Triad polymers based on a central