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https://hdl.handle.net/11499/8176
Title: | Micellization behavior of tertiary amine-methacrylate-based block copolymers characterized by small-angle X-ray scattering and dynamic light scattering | Authors: | Özcan, Yusuf Ide, S. Jeng, U. Bütün, V. Lai, Y.H. Su, C.H. |
Keywords: | Chemical synthesis Light scattering Polymers Small-angle scattering 2-(dimethylamino)ethyl methacrylate Aggregation numbers Co-monomer Core-shell Empirical relations Ethyl methacrylates Micelle size Micellization behavior Small angle X-ray scattering Solution pH Solution temperature Tertiary amine Micelles Micellization Organic compounds X ray scattering Block copolymers |
Abstract: | We have studied the micellization behavior of tertiary amine methacrylate-based diblock copolymers, comprising the hydrophobic poly[2-(diethylamino)ethyl methacrylate] (PDEA) and hydrophilic/polyelectrolyte poly[2-(dimethylamino)ethyl methacrylate] (PDMA) blocks. Revealed by small-angle X-ray scattering (SAXS) and dynamics light scattering, micelle size of the PDMAm-b-PDEAn diblock copolymer in aqueous solution depends sensitively on the comonomer ratio n/m, molecular weight Mw, solution temperature, and solution pH values. Aggregation number is found to follow an empirical relation of N (n/m)1.6, disregarding the molecular mass. With n/m = 0.5, Mw ? 12,000, and pH = 7.6, the diblock copolymer forms spherical core-shell micelles at 23 °C, with a PDEA-core radius of 52, a PDMA-shell thickness of 27, and an aggregation number of 127. © 2013 Elsevier B.V. All rights reserved. | URI: | https://hdl.handle.net/11499/8176 https://doi.org/10.1016/j.matchemphys.2012.12.019 |
ISSN: | 0254-0584 |
Appears in Collections: | Fen-Edebiyat Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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