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Water transport, FTIR, and morphology characterizations of novel biodegradable blends based on poly(3-hydroxybutyrate)
-
Alexander N. Shchegolikhin
,
Anna Filatova
Published/Copyright:
July 8, 2011
Abstract
This paper focuses on the study of novel blends based on poly(3-hydroxybutyrate) (PHB) and polymers with different hydrophilicity [polyethylene (PELD) and polyamide resin (PA548)]. Polymer blends were produced from five ratios of PHB/PELD in an effort to regulate the resistance to hydrolysis or (bio)degradation through the control of water permeability. The relation between the water transport and morphology (TEM data) shows the impact of polymer component ratio on the regulating water flux in hydrophobic matrix. To elucidate the role of hydrophilicity of the second component in the PHB blends, we studied the PHB/PA blends where PA is the polyamide resin composed of statistical copolymer of hexamethyleneadipinate and ε-caprolactam in ratio 1:1. The complex of techniques including DCS and Fourier Transform Infrared (FTIR)-imaging (on the scale of temperature) indicates an interaction between PHB and PA in the temperature ranges of crystallization and melting. The general approach based on Flory-Huggins equation is presented as a way to choose pairs of compatible or partly compatible polymers. Blending PHB with PA could be a simple and effective method to design new matrices for drug delivery, while the same procedure applied to PHB-PELD system with better resistance again, hydrolysis and lower cost than parental PHB could be used as novel bioerodible packaging materials.
Keywords: blends; diffusion; hydrophobicity; LDPE; permeability; poly(3-hydroxybutyrate); polyamide resin; temperature FTIR imaging; water
Published Online: 2011-07-08
Published in Print: 2011-07-01
©2011 by Walter de Gruyter Berlin Boston
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Keywords for this article
blends;
diffusion;
hydrophobicity;
LDPE;
permeability;
poly(3-hydroxybutyrate);
polyamide resin;
temperature FTIR imaging;
water
Articles in the same Issue
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- Complex permittivity measurements of RF plasma polymerized polyterpenol organic thin films employing split post dielectric resonator
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