Effect of Different Plasticizers on Thermal, Crystalline, and Permeability Properties of Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) Films.

ABSTRACT: Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH) films were prepared using a cast film technique. Dioxane was chosen over other polymer solvents as it resulted in homogenous films with better morphology. Several plasticizers with different molecular weights and concentrations were added to the biopolymer solution prior to casting. Thermal, crystalline, and permeability properties were analyzed by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and both water vapor and oxygen transmission rate analysis. In general, the addition of plasticizers decreased the glass transition temperature (T_g), cold crystallization temperatures (T_cc), melting temperatures, as well as crystallinity degrees and increased the crystallit

SUBMITTER: Farrag Y 

PROVIDER: S-EPMC9460745 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature