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Latex interpenetrating polymer networks based on high styrene resin

✍ Scribed by C. D. Vo; R. P. Burford

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
256 KB
Volume
74
Category
Article
ISSN
0021-8995

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✦ Synopsis

Latex interpenetrating polymer networks based on high styrene resin ("HSR300") as seed latex and polystyrene as the second polymer have been synthesized in different compositional ratios. The morphology of resultant materials was determined by field emission electron microscopy, atomic force microscopy, transmission electron microscopy, and by dynamic mechanical analysis. A polystyrene (PS) rich shell is observed in the latex particles. At higher second polymer ratios, a PS-rich shell can be resolved, but in general the majority of the polymer is incorporated as domains within each particle. The two crosslinked polymers are well intermeshed at the microscopic level, as reflected not only by morphology but also by single tan ␦ peaks in dynamic mechanical analysis (DMA) data.

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## Synopsis Two latex interpenetrating polymer networks, one prepared from a pair of supposedly compatible polymers and the other from an incompatible pair, were investigated using transmission electron microscopy and dynamic mechanical analysis. From the results, it was proposed that both interpe