Understanding the formation of insoluble gel particles during cellulose diacetate production

The production of cellulose diacetate (CDA) faces an ongoing challenge with the formation of insoluble colloidal materials, referred to as insoluble gel particles (IGP). CDA is typically dissolved in solvents like acetone for processing into commercial products. However, IGP presents challenges in t...

Full description

Saved in:
Bibliographic Details
Published in:Cellulose (London) 2024-03, Vol.31 (4), p.2141-2150
Main Authors: Park, Seonghyun, Rahmani, Farzin, Treasure, Trevor, Lee, Joo, Tiller, Phoenix, Pasquinelli, Melissa A., Kelley, Stephen S., Park, Sunkyu
Format: Article
Language:English
Subjects:
Acetates
Acetone
Acetylation
Bioorganic Chemistry
Cellulose
Cellulose diacetate
Ceramics
Chemistry
Chemistry and Materials Science
Composites
Glass
Natural Materials
Organic Chemistry
Original Research
Physical Chemistry
Polymer Sciences
Solvents
Sustainable Development
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The production of cellulose diacetate (CDA) faces an ongoing challenge with the formation of insoluble colloidal materials, referred to as insoluble gel particles (IGP). CDA is typically dissolved in solvents like acetone for processing into commercial products. However, IGP presents challenges in the production of commercial CDA-based products, potentially impacting both intermediate processing and quality of the final products. IGP formation is connected to factors such as incomplete acetylation and the presence of hemicellulose acetates, but its root cause is still debated. This study primarily investigates the impact of hemicelluloses on IGP formation during CDA production. To study IGP formation, we proposed scenarios using xylan acetate (XA) as a model impurity. The results show that the precipitation process employed for CDA recovery plays a crucial role in IGP formation, with acetone-soluble CDA also contributing to IGP formation during precipitation. Additionally, the persistence of IGP is influenced by the behavior of XA in redissolution solvents. Graphical abstract
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-024-05769-0