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Updated: Jul 12, 2026

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions
06:56

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Published on: October 10, 2013

Spontaneous formation of an exfoliated polystyrene-clay nanocomposite using a star-shaped polymer

Douglas R Robello1, Nori Yamaguchi, Thomas Blanton

  • 1Research & Development Laboratories, Eastman Kodak Company, Rochester, NY 14650-2116, USA. douglas.robello@kodak.com

Journal of the American Chemical Society
|July 1, 2004
PubMed

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The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...