Methacrylate hydrogels reinforced with bacterial cellulose
Journal article, 2012

Composite hydrogels consisting of nanofibrous bacterial cellulose (BC) embedded in a biocompatible polymeric matrix of various methacrylates were synthesized by UV polymerization using the ever-wet technique. The effect of monomer(s) type and ratio, system dilution at polymerization, monomer(s) hydrophilicity, crosslink density and cellulose/hydrogel ratio was investigated. The effect of BC reinforcement on equilibrium swelling depends on whether the neat gel swells more when brought into contact with water. The major improvement achieved by introduction of 1%2% BC concerns mechanical properties. Compared with neat gels, the storage shear modulus G' increased by a factor 10-20, and the loss part G? also rose significantly. The compression modulus ranged from 2 to 5.5 MPa for composites swollen to equilibrium (20-70 wt% water). The BC-hydrogel composites are considered for application in the tissue engineering area.

mechanical-properties

bacterial cellulose

nanocomposites

swelling

polyvinyl-alcohol

composite

double network hydrogels

methacrylate hydrogel

nanocellulose

applications

biomedical

mechanical

Author

R. Hobzova

Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic

M. Duskova-Smrckova

Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic

J. Michalek

Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic

E. Karpushkin

Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic

Paul Gatenholm

Chalmers, Chemical and Biological Engineering, Polymer Technology

Polymer International

0959-8103 (ISSN) 1097-0126 (eISSN)

Vol. 61 7 1193-1201

Subject Categories

Chemical Engineering

DOI

10.1002/pi.4199