Surface functionalization of polymer latex particles. I. Catalytic oxidation of poly(methylstyrene) latex particles in the presence of an anionic surfactant

Pei Li, Jiang Hong Liu, Hak Ping Yiu, Kan Kwang Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)

Abstract

A facile synthesis of functionalized poly [3(4)-methylstyrene] (PMS) latex particles containing aldehyde and carboxylic acid groups was achieved via an emulsion polymerization of 3(4)-methylstyrene in the presence of sodium dodecyl sulfonate, followed by an in-situ oxidation catalyzed by copper (II) chloride and t-butyl hydroperoxide (t-BuOOH) in the presence of t-butyl alcohol (t-BuOH). The structure of the anionic surfactant, metal catalyst, organic solvent, oxidant, and their concentrations strongly affected the rate of oxidation and the stability of the emulsion. The average size of the polymer latex particles was found to increase after oxidation, and the polymer was slightly crosslinked. A free-radical mechanism is proposed involving metal-catalyzed decomposition of t-BuOOH and benzylic oxidation.
Original languageEnglish
Pages (from-to)1863-1872
Number of pages10
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume35
Issue number10
DOIs
Publication statusPublished - 30 Jul 1997

Keywords

  • Catalytic oxidation
  • Functionalized latex particles
  • Poly(methylstyrene)

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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