Preparation and characterization of transparent cellulose films using an improved cellulose dissolution process

Sanjit Acharya, Yang Hu, Hanna Moussa, Noureddine Abidi

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


Effective dissolution of cellulosic macromolecules is the first predominant step to prepare functional bio-based materials with desirable properties. In this study, we developed an improved dissolution process using a freeze-drying pretreatment to promote the dissolution of cellulose. Rheological measurements of cellulose solutions and physicochemical characterization of regenerated cellulose films (scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and thermogravimetric analysis) were performed. Cellulose solution prepared from 5% microcrystalline cellulose (w:v) in the solvent exhibits a Newtonian fluid character while cellulose solutions at higher concentrations show a pseudo-plastic fluid behavior. Results from physicochemical characterization indicate that a freeze-drying pretreatment step of cellulose leads to a complete dissolution at 5% concentration while only part of cellulose is dissolved at 10% and 15% concentrations. The results obtained indicated that the use of a freeze-drying pretreatment step under mild conditions lead to a complete dissolution of cellulose at 5% concentration. The cellulose films prepared from 5% concentration exhibited desirable properties such as good optical transparency, crystallinity, and thermal stability.

Original languageEnglish
Article number44871
JournalJournal of Applied Polymer Science
Issue number21
StatePublished - Jun 5 2017


  • biomaterials
  • biopolymers and renewable polymers
  • cellulose and other wood products


Dive into the research topics of 'Preparation and characterization of transparent cellulose films using an improved cellulose dissolution process'. Together they form a unique fingerprint.

Cite this