Styrene–isoprene block copolymers. I. Synthesis and solution properties
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY(1991)
摘要
Copolymers with a different degree of distribution of styrene and isoprene blocks are prepared by anionic polymerization. The products are characterized by means of H-1-NMR spectroscopy, GPC, viscometry, and light scattering. The results show that the copolymers are homogeneous in molecular weight and chain composition. In the investigated selective solvents, cyclohexane and base lubricating oil, an equilibrium exists between micelle aggregates and individual polymer coils. The influence of the copolymer structure on the micellization is more pronounced in cyclohexane.
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关键词
block copolymer
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