Abstract
(Star po1ystyrene)-block-(linear polydimethy1siloxane)-block-(Star polystyrene) triblock copolymers were synthesized by making living Star-shaped polystyrenes through a convergent living anionic polymerization procedure, followed by ring-opening polymerization of hexamethylcyclotrisiloxane (D3) then difunctional coupling. The molecular weights of the resulting polymers were characterized by gel permeation chromatography (GPC), multi angle laser light scattering (MALLS) and 1H NMR spectroscopy. Triblock copolymers with relatively narrow molecular weight distributions were obtained.
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