Resumo

POOLEY, S.A.; CANESSA, G.S.  e  RIVAS, B.L.. SYNTHESIS AND STRUCTURE OF POLY[N-(2-HYDROXYETHYL)-ETHYLENEIMINE-co-3,4,5,6 - TETRAHYDROPHTHALIC ANHYDRIDE]. Bol. Soc. Chil. Quím. [online]. 2000, vol.45, n.2, pp.251-258. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442000000200012.

The spontaneous copolymerization reaction in acetonitrile at 35C by 48 h between N-(2-hydroxyethyl)ethyleneimine with 3,4,5,6-tetrahydrophthalic anhydride under different experimental conditions was studied. The yield and molecular weight ranged between 57 - 78 % and 8.5 - 9.1·10³ respectively. The copolymer composition determined from ¹H NMR spectra demostrated that as decreases the concentration of HEEI units in the feed, decreases the incorporation of HEEI units in the copolymer. According to the all spectroscopic data a copolymer structure was suggested. It considers the 3,4,5,6-tetrahydrophthalic anhydride units forming part either the backbone and the side chain , and the anhydride bonds are placed only in the side chains

Palavras-chave : Zwitterion, spontaneous copolymerization; anhydrides-heterocyclic amines copolymerization.