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Si—H Functional Polysilanes via a Homogeneous Reductive Coupling Reaction
Author(s) -
Sacarescu Gabriela,
Sacarescu Liviu,
Ardeleanu Rodinel,
Kurcok Piotr,
Jedliński Zbigniew
Publication year - 2001
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20010301)22:6<405::aid-marc405>3.0.co;2-n
Subject(s) - polysilane , tetrahydrofuran , crown ether , monomer , alkali metal , polymer chemistry , coupling reaction , copolymer , gel permeation chromatography , materials science , chemistry , organic chemistry , catalysis , ion , polymer , solvent
A polysilane copolymer with reactive Si—H side groups was obtained through a homogeneous coupling reaction of dichlorodiphenylsilane with dichloromethylsilane. The reaction was carried out in a tetrahydrofuran (THF) solution of a sodium‐potassium alloy complex with 18‐crown‐6 with a well defined composition of alkali metal ion pairs (Mt + /crown ether, Mt – ) at –75°C. The product was characterized using 1 H NMR, 13 C NMR, FT‐IR and UV/Visible spectroscopies and gel permeation chromatography. The results were compared with those obtained by the heterogeneous coupling reaction of the same monomers.