Solvent suspensions of a high performance polymer, Polyamide-imide (PAI) are widely used in magnetic wire coatings. Here we investigate the effect that the introduction of montmorillonite (MMT) has on PAI. MMT was introduced into an uncured PAI suspension; the sample was then cured by step-wise heat treatment. Polarized optical microscopy was used to choose the best suitable MMT for PAI matrix and to study the distribution of MMT in PAI matrix. Concentration dependent dispersion effect was studied by x-ray diffraction (XRD) and was confirmed by Transmission electron microscopy (TEM). Differential scanning Calorimetry (DSC) and Thermogravimetric analysis (TGA) was used to study impact of MMT on glass transition temperature (Tg) and degradation properties of PAI respectively. Micro-hardness testing of PAI nanocomposites was also performed. A concentration dependent state of dispersion was obtained. The glass transition (Tg), degradation and mechanical properties were found to correlate to the state of dispersion.

Thesis (M.S.)--Texas State University--San Marcos, 2009. / Vita. Reproduction permission applies to print copy: Blanket permission granted per author to reproduce. Includes bibliographical references (leaves 68-70).

Self-assembled polymer nanocomposites are a promising class of advanced materials with unique structures and tunable properties. Control over the spatial arrangement and ordering of the constituent material is essential to developing composites with defined morphologies and properties. Here I report the synthesis of poly(n-butyl acrylate-b-styrene) from the surface of functionalized montmorillonite clay (MMT) via activators regenerated by electron transfer (ARGET) atom transfer radical polymerization (ATRP). The application of ARGET ATRP to MMT surface-initiated polymerizations results in a robust and reproducible method for synthesizing well-defined tethered block copolymers. The chosen block copolymer architecture of the composite materials resembles that of a thermoplastic elastomer, with glassy PS domains sandwiching the rubbery PnBA domain, which is divided by the clay platelets. The structure was characterized by several techniques that examine the self-assembly and degree of clay exfoliation. Preliminary analysis of the material properties indicates elastomeric behavior. / text

Thesis (Doctoral)--Ludwig-Maximilians-Universität München, 1982.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1970. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.Sc.)--City University of Hong Kong, 2004. / At head of title: City University of Hong Kong, Department of Physics and Materials Science, Master of Science in materials engineering & nanotechnology dissertation. Title from title screen (viewed on Aug. 31, 2006) Includes bibliographical references.

Thesis (M.Sc.)--City University of Hong Kong, 2004. / At head of title: City University of Hong Kong, Department of Physics and Materials Science, Master of Science in materials engineering & nanotechnology dissertation. Title from title screen (viewed on Sept. 1, 2006) Includes bibliographical references.

Thesis--University of Adelaide. / Bibliography: leaves 181-189.

Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.

Universiẗat, Diss., 2004--Kiel.