직/편성물 염색

Structure of Nascent Microbial Cellulose III. Different Influence of Direct Red 75 and 79 on Nascent Microbial Cellulose.

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 300
Researchers investigated the influence of Direct Red 75 and 79 having the same ureylenebis(naphthylazo)benzene skeletal structure on the nascent structure of microbial cellulose. Each product obtained from Acetobacter culture in the presence of Direct Red 75 or Direct Red 79 was a crystalling complex in which the monolayer of a dye occurred between the cellulose sheets corresponding to the 110 plane of microbial cellulose. Regenerated cellulose from each product formed cellulose II. Although the substituent groups in the skeletal structure of both dyes were not the same, their interactions on the nascent structure of microbial cellulose were similar. Due to the ureylene group, stronger hydrogen bonding occurred between the dye and cellulose. 9 refs.
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