Soft gelatin films modified with cellulose acetate phthalate pseudolatex dispersion-structure and permeability
Artikel i vetenskaplig tidskrift, 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

Författare

Bartosz Maciejewski

Gdanski Uniwersytet Medyczny

Anna Ström

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Anette Larsson

Anette Larsson Group

SuMo Biomaterials

Małgorzata Sznitowska

Gdanski Uniwersytet Medyczny

Polymers

2073-4360 (eISSN)

Vol. 10 9 981

Ämneskategorier

Fysikalisk kemi

Polymerteknologi

Annan kemi

Styrkeområden

Produktion

Materialvetenskap

DOI

10.3390/polym10090981

Mer information

Senast uppdaterat

2018-10-16