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Chemical modification of viscose rayon by dimethyl and methylvinyl diacetoxysilanes
Author(s) -
Bajaj P.,
Mandal T. K.
Publication year - 1978
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.1978.070220218
Subject(s) - viscose , thermal decomposition , materials science , decomposition , polymer chemistry , modulus , thermogravimetric analysis , composite material , chemical engineering , chemistry , organic chemistry , engineering
Crosslinking of viscose rayon filament with dimethyl and methylvinyl diacetoxysilanes in benzene has been studied. The extent of crosslinking appears to depend on the nature of the reactant, material‐to‐reactant ratio, time, and temperature of the reaction. An increase in the breaking stress, initial modulus, and recovery properties was observed with increase in the crosslink density. Birefringence values as well as orientation index decrease in the treated samples. Thermal behavior of the crosslinked viscose was also studied by TGA and DTA, and it was found that IPDT (integral procedural decomposition temperature) and D max (maximum decomposition temperature) values of the crosslinked samples are higher than those of the untreated viscose.