INFLUENCE OF SUBSTITUENT OF DIRECT DYE HAVING BISPHENYLENEBIS(AZO) SKELETAL STRUCTURE ON STRUCTURE OF NASCENT CELLULOSE PRODUCED BY ACETOBACTER XYLINUM .1. DIFFERENT INFLUENCE OF DIRECT RED 28, BLUE 1 AND 15 ON NASCENT STRUCTURE

摘要

The difference of influence of a certain kind of direct dye on the structure of nascent microbial cellulose was examined, with Direct Red 28 having a biphenylenebis(azo) skeletal structure; Direct Blue 1 having two hydroxyl, two methoxy and two sulfonate groups more than Direct Red 28; and Direct Blue 15 whose sulfonate groups position are different compared to Direct Blue 1. It became clear that the product in the presence of a direct dye (in particular, Direct Red 28) has the structure in which the dye molecule is included between the monolayer in the cellulose sheets corresponding to the (1(1) over bar0