Synthesis,characterization and side chains crystallization of comb-like poly(p-n-alkylstyrene)s |
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Authors: | Francisco López-Carrasquero Giuseppe Giammanco Angélica Díaz Johanna Dávila Carlos Torres Estrella Laredo |
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Affiliation: | (1) Grupo de Polímeros ULA, Departamento de Química, Facultad de Ciencias, Universidad de los Andes, Mérida, 5101A, Venezuela;(2) Grupo FIMAC, Departamento de Física, Universidad Simón Bolívar, Caracas, 1080A, Venezuela |
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Abstract: | A series of comb like poly(p-n-alkylstyrene)s with linear alkyl groups, containing even numbers of carbon atoms from 12 up to 22 were synthesized by radical polymerization and characterized by FTIR, 1H NMR, TGA, TVA DSC, and WAXS. All polymers were obtained in good yields and were soluble in organic solvents as chloroform, dichloromethane or tetrahydrofuran and insoluble in methanol; they are stable up to temperatures near 300 °C. On the other hand, the alkylic side chains of all series are able to crystallize in a paraffinic phase in which the melting temperature and enthalpy increase with the methylene number of the n-alkyl chain. |
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Keywords: | Poly(p-n-alkylstyrene)s Side chains crystallization Comb-like polymer Polystyrene Radical polymerization |
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