Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"poly(vinyl acetate)"”.
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Dielectric dispersion of poly(vinyl acetate) solutions
The dielectric dispersion of poly(vinyl acetate) solutions was studied in an attempt to relate this behavior to the chemical nature of the material. The bridge method was employed in which capacitance measurement of solutions were made over a frequency range of 400 cycles to 500 kilocycles. The …
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Understanding the Role of N-Methylolacrylamide (Nma) Distribution in Poly(Vinyl Acetate) Latex Adhesives
… N-methylolacrylamide (NMA) units in crosslinking poly(vinyl acetate) (PVAc) adhesives. In this case, distribution refers to the three potential locations of polymerized NMA units in a latex: the water-phase, the surface of polymer particles, and the core of the polymer particles. The objective is …
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Development of a biodegradable biopolymer from renewable natural resources suitable for additive manufacturing and bone tissue engineering
… and biodegradable naturally derived polymer, offers great promise as a biomaterial for tissue engineering applications. Chitosan scaffolds have previously been fabricated using additive manufacturing techniques, however, the use of crosslinkers, weak mechanical stability and …
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Effect of structure and plasticizer on the glass transition of adsorbed polymer
<p>"The effect of molecular mass on adsorbed poly(methyl methacrylate) (PMMA) on silica was determined using temperature-modulated differential scanning calorimetry (TMDSC). A two-component model, based on loosely-bound polymer (glass transition temperature, T<sub>g</sub>, similar to that of bulk) …
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Applications of high resolution solid state carbon-13 NMR to the study of multicomponent polymer systems
… was applied to a number of multicomponent polymer systems. Specific problems which were addressed are: (1) the nature of domain structure and molecular motion of two thermoplastic elastomer systems, including a series of styrene isoprene-styrene linear triblock copolymers (SIS’s) of various …
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Measurement and Modelling of Soft Solid Layers in Cleaning Applications
… by monitoring the swelling of gelatin, poly(vinyl acetate) (PVAc) and complex model soil layers at different pH and temperatures. All these materials underwent rapid initial hydration, followed by different longer term behaviour: gelatin and PVAc layers at pH < 11 exhibited Fickian …
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Janus Particles at Interfaces
… the synthesis and the characterization of both polymeric and hybrid Janus particles of well-defined size, shape and functionality and their high potential for applications in colloidal and material science. Soft Janus particles, based on polystyrene-block-polybutadiene-block-poly(methyl …
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Thermally/Mechanically Responsive Polymeric Composites with Shape Memory/Self-Healing Properties
… novel thermally and mechanically responsive polymeric composites for several industrial applications.</p> <p>In Chapter 2, the curing kinetics and polymerization induced phase separation (PIPS) of an epoxy matrix with and without a semicrystalline thermoplastic was investigated. Same PIPS …