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Swelling-induced deformation of spherical latex particles

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Wei,  Chunxiang
Klaus Tauer, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

Plucinski,  Alexander
Klaus Tauer, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

Nuasaen,  Sukanya
Klaus Tauer, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Tripathi,  Amit
Klaus Tauer, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Tauer,  Klaus
Klaus Tauer, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Wei, C., Plucinski, A., Nuasaen, S., Tripathi, A., Tangboriboonrat, P., & Tauer, K. (2017). Swelling-induced deformation of spherical latex particles. Macromolecules, 50(1), 349-363. doi:10.1021/acs.macromol.6b02379.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-3337-4
Abstract
Experimental evidence is presented showing that the direct formation of anisotropic colloidal polymer particles via aqueous heterophase polymerization is essentially controlled by the entropy gain of the linear fraction in the semi-interpenetrating network of the seed particles during swelling. Anisotropic particles are produced via photoinitiated polymerization, allowing swelling and polymerization to take place at the same temperature. These experiments prove that the temperature effect on rubber elasticity is, if at all, only of minor importance for the formation of anisotropic polymer particles. The major significance of swelling of the seed particles for the whole process is underlined by additional studies with optical microscopy and model simulations.