Journal article

Synthesis, characterization, and direct observation of star microgels

PA Gurr, GG Qiao, DH Solomon, SE Harton, RJ Spontak

MACROMOLECULES | AMER CHEMICAL SOC | Published : 2003

Abstract

The molecular sizes of four star microgels, synthesized by atom transfer radical polymerization of poly(methyl methacrylate) (PMMA) with ethylene glycol dimethacrylate as the cross-linker, have been investigated by light scattering methods and transmission electron microscopy (TEM). Gel permeation chromatography right-angle laser light scattering performed with a triple detector system and dynamic light scattering together confirm that individual particles of one star microgel in tetrahydrofuran and styrene solutions possess mean diameters of 31 and 18 nm, respectively. Complementary TEM reveals that another star microgel appears as discrete particles measuring 18-30 nm in diameter when adde..

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