Synthesis of multi-arm star polystyrene with hyperbranched polyether core |
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| Authors: | Guohua Jiang Li Wang |
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| Institution: | a Department of Materials and Technology, College of Materials and Textile, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
b The State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, 310027, PR China |
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| Abstract: | Multi-arm star polystyrenes with hyperbranched poly(3-ethyl-3-oxetanemethanol) (PEOM, 3) core were synthesized by atom transfer radical polymerization (ATRP) method. The structures of polymers were confirmed by FT-IR and 1H NMR. GPC results showed that the resultant polymers had relatively low polydispersity indices (PD = 1.47-2.03). DSC analysis indicated that polystyrene star polymers had a glass transition temperature (Tg = 42.2-91.5 °C) that changed with the amount of the polystyrene in the polymers. In addition, the aggregation behavior of the multi-arm star polystyrenes in a selective solvent (THF/cyclohexane) was probed with polystyrene arms that encapsulated in the aggregates and PEOM cores hidden in the center of the micelles. |
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| Keywords: | Multi-arm star polymers Hyperbranched polyether Atom transfer radical polymerization (ATRP) Macroinitiator Synthesis Self-assembly |
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