Trevor G Bryan

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1,1,1,3,3,3-Hexafluoroisopropanol is re-examined as an eluent for size-exclusion chromatography (SEC) of polyesters, nylons, and other polar polymers. It is shown that anomalous SEC behavior reported in previous literature can be eliminated by adding 0.01 M tetraethylammonium nitrate to the eluent. The eluent modifier does not affect the solution viscosity(More)
Nanogels are highly branched, swellable polymer structures with average diameters between 1 and 100nm. Size-exclusion chromatography (SEC) fractionates materials in this size range, and it is commonly used to measure nanogel molar mass distributions. For many nanogel applications, it may be more important to calculate the particle size distribution from the(More)
A hygroscopic and polymerizable salt ([2-methacryloyloxy]ethyl trimethylammonium chloride) is used to ion exchange the sodium ion in AOT (bis[2-ethylhexyl]sulfosuccinate, sodium salt) to produce a polymerizable form of AOT, MDOS ([2-methacryloyloxy]ethyl trimethylammonium bis[2-ethylhexyl]sulfosuccinate). A partial ternary phase diagram of water, MDOS, and(More)
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