Real space structure of opaque gel

Yukiko Doi, Masayuki Tokita

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The structure of the opaque poly(acrylamide) gels is studied by using a confocal laser scanning microscope. The polymer network of the gel consists of the fractal aggregate of the colloidal particles in the higher concentration region of the cross-linker. The diameter of the colloidal particle, which formed in the gel, increases from 180 to 420 nm with an increase of the concentration of cross-linker. On the other hand, the fractal dimensions of the aggregate remain constant, ranging from 1.5 to 1.7. The densities of the particle are calculated to be 0.7 and 1.2 × 103 kg/m3, which are > 10 times larger than the average density of the polymer network of the gel. The results indicate that the monomer and the cross-linker are densely cross-linked into the particles.

Original languageEnglish
Pages (from-to)5285-5289
Number of pages5
JournalLangmuir
Volume21
Issue number12
DOIs
Publication statusPublished - Jun 7 2005

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Fingerprint Dive into the research topics of 'Real space structure of opaque gel'. Together they form a unique fingerprint.

  • Cite this

    Doi, Y., & Tokita, M. (2005). Real space structure of opaque gel. Langmuir, 21(12), 5285-5289. https://doi.org/10.1021/la050453n