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Novel Bioactive Amino‐Functionalized Cellulose Nanofibers
Author(s) -
Roemhild Katrin,
Wiegand Cornelia,
Hipler UtaChristina,
Heinze Thomas
Publication year - 2013
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201300588
Subject(s) - nanofiber , cellulose , polyvinyl alcohol , materials science , bacterial cellulose , scanning electron microscope , electrospinning , chemical engineering , polymer chemistry , polymer , nuclear chemistry , chemistry , organic chemistry , composite material , engineering
Amino‐cellulose‐based nanofibers are prepared by electrospinning of blended solutions of 6‐deoxy‐6‐trisaminoethyl‐amino (TEAE) cellulose and polyvinyl alcohol (PVA). The TEAE cellulose with a degree of substitution of 0.67 is synthesized via a nucleophilic displacement reaction starting from cellulose‐ p ‐toluenesulfonic acid ester. Several solution characteristics such as polymer concentration, electrical conductivity, and surface tension as well as setup parameters are investigated to optimize the ability of nanofiber formation. These parameters are evaluated using the rheological studies of the solutions. The nanofibers obtained are characterized by scanning electron microscopy (SEM) and show a high antimicrobial activity against Staphylococcus aureus and Klebsiella pneumoniae .