Aqueous Poly(arylacetylene) Dispersions | Zendy

J. Robert Huber | Zendy; Stefan Mecking | Zendy

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Aqueous Poly(arylacetylene) Dispersions

Author(s) -

J. Robert Huber,

Stefan Mecking

Publication year - 2010

Publication title -

macromolecules

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.994

H-Index - 313

eISSN - 1520-5835

pISSN - 0024-9297

DOI - 10.1021/ma1013572

Subject(s) - phenylacetylene , miniemulsion , polymerization , monomer , polymer chemistry , emulsion polymerization , microemulsion , catalysis , aqueous solution , particle size , materials science , chemical engineering , emulsion , chemistry , organic chemistry , polymer , pulmonary surfactant , engineering

Aqueous poly(phenylacetylene) dispersions were obtained by catalytic polymerization in emulsion with a phosphine-modified Pd(II) catalyst. A range of mono- and bidentate phosphines were screened. A tBu2P(CH2)3PtBu2-modified catalyst exhibits very high rates up to 2 × 105 TO h−1 (TO = moles of monomer converted per mole of metal present in the reaction mixture) in the preparation of colloidally stable poly(phenylacetylene) dispersions. Polymerization in miniemulsion afforded dispersions with up to 36 wt % solids content and average particle sizes of ca. 130 nm. From microemulsions dispersions with ca. 25 nm particle size were obtained.

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