Understanding of nanogels swelling behavior through a deep insight into their morphology |
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| Authors: | Jose I. Miranda Jose Ramos Jacqueline Forcada |
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| Affiliation: | 1. Nuclear Magnetic Resonance Facility, Joxe Mari Korta Center, University of the Basque Country UPV/EHU, Donostia‐San Sebastián, Spain;2. POLYMAT, Bionanoparticles Group, Department of Applied Chemistry, UFI 11/56, Faculty of Chemistry, University of the Basque Country UPV/EHU, Donostia‐San Sebastián, Spain |
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| Abstract: | A thorough understanding of the morphology of the environmental sensitive nanogels was indispensable to obtain a deeper insight on their stimuli‐responsive behavior. Therefore, in this work the colloidal characterization and the study of the inner morphology were related by using light scattering technique and 1H‐nuclear magnetic resonance transverse relaxation measurements combined with the Flory–Rehner theory. Different biocompatible and dual‐stimuli‐sensitive nanogel particles based on poly(2‐diethylaminoethyl) methacrylate were synthesized using three different crosslinkers: two bifunctional and one multifunctional. All the nanogels obtained had a core–shell type heterogeneous morphology, but they presented completely different swelling behaviors due to their different crosslinking points’ distribution and polymeric chains’ microstructure. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015 , 53, 2017–2025 |
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| Keywords: | emulsion polymerization microstructure nanogels stimuli‐sensitive polymers swelling |
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