Study on the Shape Memory Effect of Styrene Copolymer

Da Wei Zhang; Yan Hua Zhang; Li Hua Zhang; Shui Hu

doi:10.4028/www.scientific.net/AMR.148-149.1464

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Synthesis of HfC Powders by Carbothermal Reduction of Modified Hafnium Alkoxide Precursors
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Optimum Design of a Kind of Split Type Compound Vessel Used in Ultrahigh Pressure Technology
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Study on the Shape Memory Effect of Styrene Copolymer
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Photoactivity and Hydrophilicity of B and Ni Co-Doped TiO₂ Films
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Ferroelectric and Piezoelectric Properties of (1-x)BaTi_0.8Zr_0.2O₃-xBa_0.7Ca_0.3TiO₃ Ceramics Prepared by Sol-Gel Technique
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Synthesis of Self-Healing Microcapsules via Different Heating Profiles
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 148-149Study on the Shape Memory Effect of Styrene...

Study on the Shape Memory Effect of Styrene Copolymer

Abstract:

This paper is concerned about the synthesis of shape memory styrene copolymer and the investigation of the influence of cross-linking degree on its shape memory effect. The influence of cross-linking degree on shape memory effect of styrene copolymer was investigated through altering the dosage of cross-linking agent. The Tg increased from 65 to 80.7 with the gel content increase from 35% to 80% which is achieved by increasing the dosage of cross-linking agent from 1% to 4%. Moreover, the SMP experienced good SME and the largest reversible strain of the SMP reached as high as 150%. When the copolymer was heated above Tg+30 (different copolymers performed different Tg), the shape recovery speed of the copolymers increased with the gel content increase.