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Autor:
Paulius Pavelas Danilovas, Joana Bendoraitiene, Rima Klimaviciute, Antanas Šarkinas, Algirdas Zemaitaitis, Ramune Rutkaite
Publikováno v:
Journal of Applied Polymer Science. 128:4346-4354
Cross-linked cationic starches N-(2-hydroxyl)propyl-3-trimethyl ammonium starch chloride (CQS chloride), N-(2-hydrox- yl)propyl-3-trimethyl ammonium starch iodide (CQS iodide), and N-(2-hydroxyl)propyl-3-trimethyl ammonium starch iodide-iodine (CQS t
Autor:
Krisda Suchiva, Surapich Loykulnant, Oraphin Chaikumpollert, Promsak Sanguanthammarong, Preeyawis Na Ubol, Chaveewan Kongkaew
Publikováno v:
Journal of Applied Polymer Science. 123:913-921
In this study, the chitosan and its derivatives were tested for their preservative activities for field natural rubber (NR) latex. A series of chitosans with different molecular weights were obtained by nitrous acid depolymerization. The chemically m
Publikováno v:
Journal of Applied Polymer Science. 116:218-224
Chemical modification of corn starches with succinic anhydride or acetic anhydride was carried out using 1-butyl-3-methylimidazolium chloride (BMIMCl) as a reaction medium. The reaction progress was followed in terms of the degree of substitution (DS
Publikováno v:
Journal of Applied Polymer Science. 115:2368-2374
A quaternary ammonium derivative of konjac glucomannan (KGM) was prepared by a dry process from KGM and 2,3-epoxypropyl trimethylammonium chloride. We determined the optimization of the experimental conditions by studying on the effects of the water
Publikováno v:
Journal of Applied Polymer Science. 115:237-241
Use of polymeric reagents simplifies routine acylation of alcohols because it eliminates traditional purification. We describe the use of readily available crosslinked poly(N-benzoyl-4-vinylpyridinium)chloride, [P4VP] COPh, in the solution phase synt
Autor:
Mohammad Ali Karimi Zarchi, Jalil Noei
Publikováno v:
Journal of Applied Polymer Science. 114:2134-2138
A combination of cross-linked poly(4-vinylpridininium) chloride [P4-H] Cl, [II], and sodium nitrite or quaternized cross-linked poly(N-methyl-4-vinylpyridinum) nitrite [P4-Me] NO2, [IV], was used as effective nitrosating agents for the N-nitrosation
Publikováno v:
Journal of Applied Polymer Science. 114:1449-1456
Cationization of cellulose under aqueous alkaline conditions was studied. Two new epoxy reagents, N-oxiranylmethyl-N-methylmorpolinitim chloride and 2-oxiranylpyridine, were used for preparation of cationic cellulose ethers. Using the first agent, ca
Publikováno v:
Journal of Applied Polymer Science. 114:1543-1550
4,4'-Bis(4-phenoxybenzoyl)diphenyl was prepared by the Friedel-Crafts reaction of 4-bromobenzoyl chloride and diphenyl followed by condensation with potassium phenoxide. Novel aromatic poly(ether ketone diphenyl ketone ether ketone ketone)s were obta
Publikováno v:
Journal of Applied Polymer Science. 114:132-138
Polyepichlorohydrin containing reactive chloromethyl side groups was found to be highly soluble in polar ionic liquids containing halide anions such as 1-n- butyl-3-methyl imidazolium chloride, 1-n-ethyl-3-methyl imidazolium bromide, and 1-n-hexyl-3-
Autor:
Mona M. Fahmy, Nadia A. Mohamed
Publikováno v:
Journal of Applied Polymer Science. 113:767-776
Four novel wholly para-oriented aromatic polyamide-hydrazides containing flexibilizing sulfone-ether linkages in their main chains have been synthesized from 4-amino-3-hydroxy benzhydrazide (4A3HBH) with either 4,4′-sulfonyldibenzoyl chloride (SDBC