Stimuli Responsive Self-Assembly of 3-(Octyloxy)-3-Oxopropyl Acrylate-Co-Acrylic Acid Polymer in Aqueous Media
作者： Pandari Phani Kumar , Rati Ranjan Nayak , Akula Shivaraju , Narayana Amarnath , Bojja Sreedhar
DOI: 10.1007/S11743-016-1809-8
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摘要: A novel copolymer based on 3-(alkyloxy)-3-oxopropyl acrylate and acrylic acid was synthesized characterized. Surface tension fluorescence probe techniques (using N-phenyl-1-naphthylamine as a probe) were employed to evaluate the surface properties of amphiphilic copolymer. The found reduce water 40–46 mN/m depending pH medium. critical aggregation concentration determined by measurements be 0.28 mg/ml at 4, 1.13 mg/ml 8, 1.44 mg/ml 10, very close those obtained steady state (0.21, 1.13 1.48 mg/ml, respectively, 10). pH-induced structural transitions also studied using with pyrene 1,6-diphenyl-1,3,5-hexatriene probes, dynamic light scattering transmission electron microscopy. protonation pendant carboxylate groups acidic makes aggregate compact rigid. Conversely, ionization under alkaline conditions resulted in larger aggregates.
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