Polymerization of Nitrophenyl and 3-Diethylaminophenyl Prop-2-yn-1-yl Ethers with PdCl2. Polymers and Copolymers Characterization

[img]PDF - Authorized users only
Language: English
113Kb
Title:Polymerization of Nitrophenyl and 3-Diethylaminophenyl Prop-2-yn-1-yl Ethers with PdCl2. Polymers and Copolymers Characterization
Creators:
Balcar, Hynek
Holler, Petr
Sedláček, Jan
Blechta, Vratislav
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 63, 11, pp. 1803-1814
Uncontrolled Keywords:Propargyl ethers, Palladium dichloride, Homogeneous catalysis, Polymerization, Polyacetylenes, Copolymerization

Abstract

2-, 3- and 4-Nitrophenyl prop-2-yn-1-yl ethers were polymerized with PdCl<sub>2</sub> in <i>N</i>,<i>N</i>-dimethylformamide (DMF) giving brown polymers soluble in DMF, dimethyl sulfoxide and <i>N</i>-methylpyrrolidone. Broad (mostly bimodal) molecular weight distributions were observed by size-exclusion chromatography (SEC) with maxima at molecular weight of about 4 . 10<sup>3</sup> and 1 . 10<sup>5</sup>. With the same catalyst, 3-diethylaminophenyl prop-2-yn-1-yl ether gave predominantly low molecular weight homopolymer (<i>M<sub>n</sub></i> = 4 200) soluble in DMF, <i>N</i>-methylpyrrolidone, CHCl<sub>3</sub> and tetrahydrofuran-soluble copolymers with 4-nitrophenyl prop-2-yn-1-yl ether (<i>M<sub>n</sub></i> about 3 000). IR, NMR and UV-VIS spectra of prepared polymers and copolymers proved the structure to consist of the polyene-type main chain with phenoxymethyl pendant groups bearing nitro or diethylamino substituents.

Title:Polymerization of Nitrophenyl and 3-Diethylaminophenyl Prop-2-yn-1-yl Ethers with PdCl2. Polymers and Copolymers Characterization
Creators:
Balcar, Hynek
Holler, Petr
Sedláček, Jan
Blechta, Vratislav
Uncontrolled Keywords:Propargyl ethers, Palladium dichloride, Homogeneous catalysis, Polymerization, Polyacetylenes, Copolymerization
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:63
Number:11
Page Range:pp. 1803-1814
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19981803UNSPECIFIED
ID Code:1422
Item Type:Article
Deposited On:06 Feb 2009 17:09
Last Modified:06 Feb 2009 16:09

Citation

Balcar, Hynek; Holler, Petr; Sedláček, Jan; Blechta, Vratislav (1998) Polymerization of Nitrophenyl and 3-Diethylaminophenyl Prop-2-yn-1-yl Ethers with PdCl2. Polymers and Copolymers Characterization. Collection of Czechoslovak Chemical Communications, 63 (11). pp. 1803-1814. ISSN 0010-0765

Repository Staff Only: item control page