Synthesis of new amphiphilic water‐stable hyperbranched polycarbosilane polymers |
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| Authors: | Silvia Moreno Tania Lozano-Cruz Paula Ortega M Pilar Tarazona F Javier de la Mata Rafael Gómez |
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| Affiliation: | 1. Departamento de Química Organica y Química Inorganica, Universidad de Alcalá, Campus Universitario, , E‐28871 Alcalá de Henares, Spain;2. Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER‐BBN), , Spain;3. Departamento Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Campus Universitario, , E‐28871 Alcalá de Henares, Spain |
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| Abstract: | New amphiphilic hyperbranched polymers possessing hydrophobic skeletons and hydrophilic terminal groups have been prepared and characterized. The synthetic strategy involved the formation of a new stable matrix with aromatic units within a carbosilane backbone, as well as the use of a classical polycarbosilane matrix. Both of them with allyl groups on the surface have narrow polydispersity values. Molecular weight and polydispersity of the hyperbranched polymers were obtained using gel permeation chromatography with multi‐angle light scattering, and determination of the average number of functional groups present on the surface was achieved using 1H NMR spectroscopy. The introduction of ionic groups was carried out via thiol–ene reactions with various thiol derivatives. The thermal properties of the polymers were also analysed using differential scanning calorimetry and zeta potential measurements. © 2013 Society of Chemical Industry |
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| Keywords: | hyperbranched polymers thiol– ene amphiphilic polycarbosilane |
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