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Studies in chemically modified celluloses. II. Some aspects of physical properties of chemically modified celluloses
Author(s) -
Kangle P. J.,
Nabar G. M.
Publication year - 1968
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1968.070121111
Subject(s) - sodium hypochlorite , cellulose , sulfuric acid , oxidizing agent , chemical modification , ultimate tensile strength , bleach , sodium borohydride , potassium dichromate , materials science , chemistry , hypochlorite , chemical engineering , abrasion (mechanical) , chemical structure , sodium nitrite , organic chemistry , polymer chemistry , composite material , catalysis , engineering
The changes in physical properties such as moisture regain, tensile strength, elongation at break, bursting strength, and resistance to abrasion of cellulose modified with different oxidizing agents such as dichromate–sulfuric acid, sodium hypochlorite in presence of leuco vat dyes, and potassium metaperiodate and of the corresponding products obtained as a result of reduction with sodium borohydride and those by oxidation with chlorous acid have been studied. Results are critically discussed in the light of existing knowledge on the changes that occur in the fine structure as well as in the chemical structure of cellulose during the mentioned modifications. It is pointed out that complex changes in physical properties of cotton cellulose brought about by chemical modification could hardly be evaluated and interpreted in terms of one or two physical or chemical parameters.