섬유

effect of potassium superoxide on cellulose

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 251
cotton staple was reacted with potassium superoxide in dimethylsulfoxide at room temperature. the primary wall was perforated, the bonding between fibrillar components was weakened, and the degree of polymerization (dp) was decreased from 6700 to about 300. this resistant dp was similar to that reported in the literature for the limit dp of cotton after acid hydrolysis. shaking the reaction mixture did not increase the chemical degradation significantly but did abrade the outer wall, caused cracks and splits to appear in the secondary wall, and diminished the fiber length from 13 mm to 0. 8 mm. this loss of length was thought to be caused by a radical-initiated chain reaction proceeding through the accessible portions of the fiber, between structural units, and into the amorphous regions of the cellulosic microfibril. (author abstract) 8 refs
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