Thermoresponsive poly-(N-isopropylmethacrylamide) microgels: Tailoring particle size by interfacial tension control

von Nessen K, Karg M, Hellweg T (2013)
Polymer 54(21): 5499-5510.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
Size control is one of the most important tasks in colloid synthesis. In the present work, the anionic surfactant sodium dodecyl sulfate (SDS) and the cationic surfactant cetyl trimethyl ammonium bromide (CTAB) were used to precisely control the size of poly-N-isopropylmethacrylamide [poly-(NIPMAM)I microgels prepared by precipitation polymerization. For each surfactant the concentration was varied over a broad range below the critical micelle concentration (cmc). The resulting particle size, size distribution, and shape were studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Photon correlation spectroscopy (PCS) was employed to analyze the volume phase transition behavior of the microgels. We show that for both surfactants a decrease in particle size is achieved for increasing surfactant concentrations while the swelling properties of the microgels are nearly unaffected. (C) 2013 Elsevier Ltd. All rights reserved.
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Zeitschriftentitel
Polymer
Band
54
Zeitschriftennummer
21
Seite
5499-5510
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von Nessen K, Karg M, Hellweg T. Thermoresponsive poly-(N-isopropylmethacrylamide) microgels: Tailoring particle size by interfacial tension control. Polymer. 2013;54(21):5499-5510.
von Nessen, K., Karg, M., & Hellweg, T. (2013). Thermoresponsive poly-(N-isopropylmethacrylamide) microgels: Tailoring particle size by interfacial tension control. Polymer, 54(21), 5499-5510. doi:10.1016/j.polymer.2013.08.027
von Nessen, K., Karg, M., and Hellweg, T. (2013). Thermoresponsive poly-(N-isopropylmethacrylamide) microgels: Tailoring particle size by interfacial tension control. Polymer 54, 5499-5510.
von Nessen, K., Karg, M., & Hellweg, T., 2013. Thermoresponsive poly-(N-isopropylmethacrylamide) microgels: Tailoring particle size by interfacial tension control. Polymer, 54(21), p 5499-5510.
K. von Nessen, M. Karg, and T. Hellweg, “Thermoresponsive poly-(N-isopropylmethacrylamide) microgels: Tailoring particle size by interfacial tension control”, Polymer, vol. 54, 2013, pp. 5499-5510.
von Nessen, K., Karg, M., Hellweg, T.: Thermoresponsive poly-(N-isopropylmethacrylamide) microgels: Tailoring particle size by interfacial tension control. Polymer. 54, 5499-5510 (2013).
von Nessen, Katja, Karg, Matthias, and Hellweg, Thomas. “Thermoresponsive poly-(N-isopropylmethacrylamide) microgels: Tailoring particle size by interfacial tension control”. Polymer 54.21 (2013): 5499-5510.