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Chemical celluloses derived from Pinus radiata wood pulps for nitrocellulose preparation
Author(s) -
Sioumis Anthony A.,
Wallis Adrian F. A.,
Puri Vinod P.
Publication year - 1991
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990250402
Subject(s) - cellulose , nitration , pinus radiata , kraft paper , radiata , lignin , nitrocellulose , chemistry , kraft process , soda pulping , materials science , pulp and paper industry , chromatography , organic chemistry , composite material , botany , biochemistry , biology , vigna , membrane , engineering
The nitration capabilities of a range of chemical celluloses, including some containing the cellulose‐II polymorph, were examined. The cellulose samples, derived from Pinus radiata wood by bisulphite, prehydrolysis‐kraft or kraft pulping, were compared with a commercial nitration‐grade cellulose and two bleached cotton linters samples. All samples on nitration gave nitrocelluloses (degree of substitution ≈ 2–45) which had satisfactory stabilities and solubilities, with the exception of a P. radiata bisulphite cellulose which had a high pentosan value. The presence of cellulose‐II in the samples was not an impediment to the nitration. High performance size exclusion chromatography of the nitrocelluloses showed that the molecular weight distributions of samples derived from the P. radiata celluloses were generally similar to that derived from a commercial nitration‐grade cellulose.