Phthalic anhydride as an electrophihc monomer was copolymerized in the absence of initiator under various experimental conditions with aziridine or 2-methylaziridine as nucleophihc monomers. The copolymers by elemental analysis, i.r. and 'H-NMR spectroscopy were characterized and their specific visc
Copolymerization without initiator of aziridine with succinic anhydride
β Scribed by S.A. Pooley; G.S. Canessa; B.L. Rivas
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 229 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0014-3057
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β¦ Synopsis
AImraet--The copolymerization of aziridine (Az) as nucleophilic monomer and succinic anhydride as electrophilic monomer without initiator in solution under different mol ratio was investigated. Copolymers were characterized by elemental analyses, i.r. and ~H-NMR spectroscopy. For all feed mole ratio of comonomer, Az is incorporated preferentially in the copolymer. For the soluble copolymers it is possible by ~H-NMR spectroscopy to determine the Az-homodyad concentration. The copolymerization reaction occurs by an intermediate "genetic zwitterion".
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The copolymerization of 2-methyl-2-oxazoline, as nucleophilic monomer, and fl-methylhydrogen itaconate (MHI), as electrophilic monomer, without initiator in solution under various conditions was investigated. Copolymers were characterized by elemental analysis, FT-i.r. and ~H-NMR spectroscopy. The c
Kinetic data on the esterification of succinic anhydride with methanol catalyzed by sulfuric acid have been obtained using a stirred batch reactor. In addition to get a precise ascertainment of the parameters the esterification of monomethyl succinate with methanol has been studied separately. Sever