Composition and salt concentration dependences of mechanical properties of poly(vinyl alcohol)/sodium polyalginate interpenetrated networks

Yoshiaki Takahashi; Ryusuke Ikematsu

doi:10.1295/koron.63.120

Composition and salt concentration dependences of mechanical properties of poly(vinyl alcohol)/sodium polyalginate interpenetrated networks

Yoshiaki Takahashi, Ryusuke Ikematsu

Department of Advanced Device Materials

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Mechanical properties of poly (vinyl alcohol)/sodium polyalginate (PVA/ ALG) interpenetrated networks (IPN) prepared by immersing PVA/ALG cast films in CaCl₂ solutions are examined by simple elongation measurements. The ALG contents were 2.4, 9.1, and 16.7 wt% and the concentrations of CaCl₂ solutions are varied from 0 - 2.2 M. The increment of Young's modulus ΔE = E - E_PVA, where E and E_PVA are Young's moduli for IPN and semi-IPN (CaCl₂ = 0 M), was proportional to the CaCl₂ concentration until cross-linking of ALG is saturated. At the higher CaCl₂ concentrations, ΔE for the each sample became almost constant. The saturated values are proportional to the ALG content.

Original language	English
Pages (from-to)	120-123
Number of pages	4
Journal	KOBUNSHI RONBUNSHU
Volume	63
Issue number	2
DOIs	https://doi.org/10.1295/koron.63.120
Publication status	Published - Jan 1 2006

All Science Journal Classification (ASJC) codes

Chemical Engineering (miscellaneous)
Materials Science (miscellaneous)
Environmental Science(all)
Polymers and Plastics

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title = "Composition and salt concentration dependences of mechanical properties of poly(vinyl alcohol)/sodium polyalginate interpenetrated networks",

abstract = "Mechanical properties of poly (vinyl alcohol)/sodium polyalginate (PVA/ ALG) interpenetrated networks (IPN) prepared by immersing PVA/ALG cast films in CaCl2 solutions are examined by simple elongation measurements. The ALG contents were 2.4, 9.1, and 16.7 wt% and the concentrations of CaCl2 solutions are varied from 0 - 2.2 M. The increment of Young's modulus ΔE = E - EPVA, where E and EPVA are Young's moduli for IPN and semi-IPN (CaCl2 = 0 M), was proportional to the CaCl2 concentration until cross-linking of ALG is saturated. At the higher CaCl2 concentrations, ΔE for the each sample became almost constant. The saturated values are proportional to the ALG content.",

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