Hydroxypropylation of cellulose isolated from bamboo ( Dendrocalamus strictus ) with respect to hydroxypropoxyl content and rheological behavior of the hydroxypropyl cellulose | Zendy

Sharma Ritu | Zendy; Varshney V. K. | Zendy; Chauhan Ghanshyam S. | Zendy; Naithani Sanjay | Zendy; Soni P. L. | Zendy

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Hydroxypropylation of cellulose isolated from bamboo ( Dendrocalamus strictus ) with respect to hydroxypropoxyl content and rheological behavior of the hydroxypropyl cellulose

Author(s) -

Sharma Ritu,

Varshney V. K.,

Chauhan Ghanshyam S.,

Naithani Sanjay,

Soni P. L.

Publication year - 2009

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.30205

Subject(s) - cellulose , bamboo , raw material , materials science , cellulose fiber , paulownia , aqueous solution , cellulosic ethanol , chemical engineering , organic chemistry , chemistry , composite material , botany , biology , engineering

Bamboo, a lignocellulosic material, is a renewable source of interest as feedstock for production of cellulose derivatives by chemical functionalization. Optimization of hydroxypropylation of cellulosic material (average DP 816), isolated from bamboo ( Dendrocalamus strictus ) was, therefore, performed with respect to maximum percent hydroxylpropoxyl (% HP) contents under varying reaction conditions and studying their effect on the % HP. The optimized reaction conditions were aqueous NaOH concentration 22%, propylene oxide concentration 17.4 mol/AGU, temperature 50°C, duration of hydroxypropylation 4 h to yield hydroxypropyl cellulose of % HP 65.89. The η app of 1 and 2% solutions of the optimized product showed it to be non‐Newtonian pseudoplastic. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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