Soft gelatin films modified with cellulose acetate phthalate pseudolatex dispersion-structure and permeability
Journal article, 2018

Gastroresistantmaterial, based on gelatin and intended to formcapsule shells,was characterized. The films were obtained by mixing a gelatin solution with cellulose acetate phthalate (CAP) pseudolatex at an elevated temperature. Microscopic and spectroscopic analyses of the films-intact or subjected to the acidic treatment-were performed, along with a permeability study of tritium-labeled water. A uniform porous structure formed by CAP within the gelatin gel was observed. The results demonstrated that no interaction of a chemical nature occurred between the components. Additionally, the performed permeability and solubility studies proved that the diffusion of water through the membranes at an acidic pH can be noticeably reduced by adding carrageenan as a secondary gelling/thickening agent.

Permeability

Coacervation

Polyelectrolytes

Gelatin

Microscopy

Gastro-resistant capsule

Author

Bartosz Maciejewski

Medical University of Gdańsk

Anna Ström

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Anette Larsson

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Anette Larsson Group

SuMo Biomaterials

Małgorzata Sznitowska

Medical University of Gdańsk

Polymers

2073-4360 (eISSN)

Vol. 10 9 981

Subject Categories

Physical Chemistry

Polymer Technologies

Other Chemistry Topics

Areas of Advance

Production

Materials Science

DOI

10.3390/polym10090981

More information

Latest update

10/16/2018