Adsorption of a cationic dye molecule on polystyrene microspheres in colloids: Effect of surface charge and composition probed by second harmonic generation
Article Abstract:
A study was conducted to show that optical second harmonic generation can be used to characterize the adsorption of a cationic dye molecule at the aqueous interface of not only negatively charged colloids but neutral and positively charged colloids as well. Adsorption of the cationic dye MG occurs on all three polystyrene microspheres surfaces, plain, negatively charged and positively charged.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Thermoresponsive triblock copolymer aggregates investigated by laser light scattering
Article Abstract:
A polystrene-b-poly(N-isopropylacrylamide)-b-polystrene (PS-b-PNIPAM-b-PS) triblock copolymer with trithicarbonate group in the middle of PNIPAM block is synthesized by using reversible addition fragmentation chain transfer (RAFT) polymerization. The temperature-induced collapse of the aggregates with the rings and coils in the corona using laser light scattering is investigated.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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