Characterization, Properties and Applications of Novel Nanostructured Hydrogels. Metadata

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Title

  • Main Title Characterization, Properties and Applications of Novel Nanostructured Hydrogels.

Creator

  • Author: Tang, Shijun
    Creator Type: Personal

Contributor

  • Chair: Hu, Zhibing
    Contributor Type: Personal
    Contributor Info: Major Professor
  • Committee Member: Kobe, Donald
    Contributor Type: Personal
  • Committee Member: Littler, Chris
    Contributor Type: Personal
  • Committee Member: Weathers, Duncan L.
    Contributor Type: Personal

Publisher

  • Name: University of North Texas
    Place of Publication: Denton, Texas

Date

  • Creation: 2006-12
  • Digitized: 2007-09-18

Language

  • English

Description

  • Content Description: The characterization, properties and applications of the novel nanostructured microgel (nanoparticle network and microgel crystal) composed of poly-N-isopropylacrylanmide-co-allylamine (PNIPAM-co-allylamine) and PNIPAM-co-acrylic acid(AA) have been investigated. For the novel nanostructured hydrogels with the two levels of structure: the primary network inside each individual particle and the secondary network of the crosslinked nanoparticles, the new shear modulus, drug release law from hydrogel with heterogeneous structure have been studied. The successful method for calculating the volume fraction related the phase transition of colloid have been obtained. The kinetics of crystallization in an aqueous dispersion of PNIPAM particles has been explored using UV-visible transmission spectroscopy. This dissertation also includes the initial research on the melting behavior of colloidal crystals composed of PNIPAM microgels. Many new findings in this study area have never been reported before. The theoretical model for the columnar crystal growth from the top to bottom of PNIPAM microgel has been built, which explains the growth mechanism of the novel columnar hydrogel colloidal crystals. Since the unique structure of the novel nanostructured hydrogels, their properties are different with the conventional hydrogels and the hard-sphere-like system. The studies and results in this dissertation have the important significant for theoretical study and valuable application of these novel nanostructured hydrogels.

Subject

  • Keyword: hydrogel
  • Keyword: PNIPAM
  • Keyword: melting
  • Library of Congress Subject Headings: Nanostructured materials.
  • Library of Congress Subject Headings: Colloids.

Collection

  • Name: UNT Theses and Dissertations
    Code: UNTETD

Institution

  • Name: UNT Libraries
    Code: UNT

Rights

  • Rights Access: unt_strict
  • Rights License: copyright
  • Rights Holder: Tang, Shijun
  • Rights Statement: Copyright is held by the author, unless otherwise noted. All rights reserved.

Resource Type

  • Thesis or Dissertation

Format

  • Text

Identifier

  • OCLC: 235946510
  • Archival Resource Key: ark:/67531/metadc5605

Degree

  • Degree Name: Doctor of Philosophy
  • Degree Level: Doctoral
  • Degree Discipline: Physics
  • Academic Department: Department of Physics
  • Degree Grantor: University of North Texas

Note