ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
New azo-initiators with two and four furanyl groups were prepared: N,N′,N″,N″′-Tetrafurfuryl 2,2′-azo-2,2′-dimethyldiglutaramide (2), tetrakis[2-(2-furoyloxy)ethyl] 2,2′-azo-2,2′-dimethyldiglutarate (4), bis[2-(2-furoyloxy)ethyl] 2,2′-azodiisobutyrate (6), and N,N′-difurfuryl-2,2′-azodiisobutyramide (9). The decay constants and the activation energies of the decomposition of the azo compounds were measured by thermogravimetric analysis. Radical polymerisations of styrene and some (meth)acrylates were performed under “dead-end” conditions. The telechelic oligomers were characterized by GPC and NMR spectroscopy, proving a furanyl functionality of nearly two or four. The kinetics of Diels-Alder reactions between the telechelics and the dienophils maleic anhydride and dimethyl maleate were measured under pseudo-first order conditions. Addition of the telechelics to an unsaturated polyester prepared from maleic anhydride and diols led to a solid material with network structure.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1993.021940413
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