Abstract/Details

Surface functionalization of polymer substrates and nanoparticles via pulsed plasma polymerization process


2005 2005

Other formats: Order a copy

Abstract (summary)

This thesis investigates the RF plasma polymerizations of chlorinated saturated linear monomer 1,1,1-trichloroethane and the dicarboxylic citraconic acid. It utilizes a variable duty cycle plasma technique to provide film chemistry control during the plasma polymerization process. Film chemical compositions and deposition rates were characterized as functions of the plasma processing conditions. In each system studied, spectroscopic analyses revealed that large progressive changes in film compositions were obtained with sequential variations in plasma duty cycles in the plasma polymerization of both 1,1,1-trichloroethane and citraconic acid.

The plasma approach was also employed to modify the surfaces of nanoparticles. Thin polymeric films, produced from allylamine monomer, were pulsed plasma polymerized onto surfaces of 35nm (average particle size) gamma iron oxide nanoparticles. The morphology, structure and composition of the allylamine coated gamma iron oxide nanoparticles were characterized using a variety of analytical techniques. High resolution transmission electron microscope measurements revealed an ultra thin film of allylamine (4 nm) was uniformly deposited on surfaces of gamma iron oxide nanoparticles by the pulsed plasma polymerization process. Fourier transform infrared, X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectroscopy measurements all confirmed the allylamine deposition and existence of free amine groups on gamma iron oxide nanoparticle surfaces. The free amine groups of polyallylamine provide sites for immobilization of foreign molecules, suggesting that the allylamine coated gamma iron oxide nanoparticles can be employed to deliver drugs to targeted tissues and organs using magnetic focusing techniques.

Indexing (details)


Subject
Polymers
Classification
0495: Polymers
Identifier / keyword
Pure sciences
Title
Surface functionalization of polymer substrates and nanoparticles via pulsed plasma polymerization process
Author
Wu, Jing
Number of pages
73
Publication year
2005
Degree date
2005
School code
2502
Source
MAI 44/01M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780542226977, 0542226979
Advisor
Timmons, Richard B.
University/institution
The University of Texas at Arlington
University location
United States -- Texas
Degree
M.S.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
1428138
ProQuest document ID
305356095
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/305356095
Access the complete full text

You can get the full text of this document if it is part of your institution's ProQuest subscription.

Try one of the following:

  • Connect to ProQuest through your library network and search for the document from there.
  • Request the document from your library.
  • Go to the ProQuest login page and enter a ProQuest or My Research username / password.