Enhancement of moisture sorption ability of cellulosic fibers by means of polymer blend and graft polymerization

CELL 5

Yasumitsu Uraki, uraki@for.agr.hokudai.ac.jp1, Md. Mondal H. Ibrahim2, Koki Itoyama3, and Makoto Ubukata1. (1) Division of Applied Bioscience, Hokkaido University, N-9, W-9, Kita-ku, Sapporo, 060-8589, Japan, (2) Department of Applied Chemistry and Chemical Technology, Rajshahi University, Rajshahi, 6205, Bangladesh, (3) Research and development Institute, Fujibo Holdings, Inc, Oyama 47, Oyamacho, Japan
A feature of cellulosic fibers is higher moisture sorption ability as compared with synthetic fibers, but is slightly lower than wool. We attempted to improve the ability in order to expand utilization of cellulosic fibers by means of polymer blend and graft polymerization.

The moisture sorption and sorption heat of viscose rayon were enhanced by the blend of alginate into the alkaline dope. The parameters of cotton yarns were also improved by the graft copolymerization with acrylic acid and methacrylic acid using potassium persulfate as a catalyst under the catalytic influence of cobalt sulfate after the cotton treatment with amine compounds. The ability of cellulosic copolymer was further enhanced by sodium hydroxide treatment to form sodium carboxylate.

 

Structure and Properties of Cellulosic Polymers, Assemblies, and Nanocomposites
7:55 AM-11:45 AM, Sunday, April 6, 2008 Morial Convention Center -- Rm. R07, Oral

Division of Cellulose & Renewable Materials

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008