ISSN:
0887-624X
Keywords:
poly(m-phenylene)
;
selective coupling
;
regiocontrolled polymer
;
oxidative coupling polymerization
;
thermal stability
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Poly(4,6-di-n-butoxy-1,3-phenylene) (6) was prepared by oxidative coupling polymerization of 1,3-di-n-butoxybenzene (1) or 2,2′,4,4′-tetra-n-butoxy biphenyl (3). Polymerizations were conducted in nitrobenzene in the presence of FeCl3 at room temperature and produced polymers with number-average molecular weights up to 42,000. The effects of various factors, such as amount of FeCl3 and reaction temperature and time were studied. The structure of polymer 6 was characterized by 270 MHz 1H- and 68.5 MHz 13C-NMR spectroscopies and was estimated to consist of almost completely 1,3-linkage. The regiocontrolled polymer was readily soluble in common organic solvents. Thermogravimetric analysis of polymer 6 showed 10% weight loss at 390°C in nitrogen. © 1997 John Wiley & Sons, Inc. J Polym Chem 35: 2259-2266, 1997
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
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