Interpenetrated network formation from poly (vinyl alcohol)/sodium polyalginate aqueous solutions and the rheological properties

Yoshiaki Takahashi, Takayuki Tsuji, Yushu Matsushita

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Gelation behaviors of poly (vinyl alcohol)/sodium polyalginate (PVA/ALG) aqueous solutions with low ALG content (PVA: 21 g/dL; ALG: 0.55 g/dL) were examined by dynamic mechanical analysis and small angle neutron scattering (SANS). The gelation process does not depend on the order of the gelation of components; SANS intensities at small wave vectors q as well as at high q are almost equal to the sum of the values for the components. Young's moduli E and EPVA for PVA/ALG gel films immersed in CaCl2 solutions and PVA film immersed in water, respectively, were obtained by simple elongation measurements. The increment of modulus ΔE = E - EPVA, was proportional to the CaCl2 concentration. From these results, we concluded that PVA/ALG systems with low ALG content compose an interpenetrating network and that the final structure does not depend on the gelation order of components.

Original languageEnglish
Pages (from-to)527-532
Number of pages6
JournalKOBUNSHI RONBUNSHU
Volume62
Issue number11
DOIs
Publication statusPublished - Jan 1 2005

Fingerprint

neutron scattering
Gelation
alcohol
Alcohols
aqueous solution
Sodium
sodium
Young modulus
Neutron scattering
gel
Interpenetrating polymer networks
Dynamic mechanical analysis
Elongation
Gels
Elastic moduli
water
Water
analysis

All Science Journal Classification (ASJC) codes

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

Cite this

Interpenetrated network formation from poly (vinyl alcohol)/sodium polyalginate aqueous solutions and the rheological properties. / Takahashi, Yoshiaki; Tsuji, Takayuki; Matsushita, Yushu.

In: KOBUNSHI RONBUNSHU, Vol. 62, No. 11, 01.01.2005, p. 527-532.

Research output: Contribution to journalArticle

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