Kinetics of volume change of poly(succinimide) gels during hydrolysis and swelling

Zsófia Varga, Kristóf Molnár, V. Torma, M. Zrínyi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Kinetics of hydrolysis induced swelling as well as pure swelling of a novel class of pH responsive biocompatible polymer gels was studied. Poly(aspartic acid) gels were prepared by hydrolysis of chemically cross-linked poly(succinimide) networks. The volume change of spherical gels of different size, measured at constant pH, proceeds in three distinct processes: solvent exchange, hydrolysis and swelling. It turned out that pure swelling as well as the swelling coupled with hydrolysis can be described by the Tanaka-Fillmore-Peters-Candau theory. The relaxation times as well as the cooperative diffusion coefficient of the network chains were determined. It was found that the initial condition of the swelling makes its influence felt neither on the relaxation time, nor on the cooperative diffusion coefficient.

Original languageEnglish
Pages (from-to)12670-12675
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume12
Issue number39
DOIs
Publication statusPublished - Oct 21 2010

Fingerprint

succinimides
swelling
Swelling
hydrolysis
Hydrolysis
Gels
gels
Kinetics
kinetics
Relaxation time
diffusion coefficient
relaxation time
aspartic acid
Aspartic Acid
succinimide
Polymers
polymers

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Kinetics of volume change of poly(succinimide) gels during hydrolysis and swelling. / Varga, Zsófia; Molnár, Kristóf; Torma, V.; Zrínyi, M.

In: Physical Chemistry Chemical Physics, Vol. 12, No. 39, 21.10.2010, p. 12670-12675.

Research output: Contribution to journalArticle

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