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Electron spin resonance (e.s.r.) spectroscopy provided useful information regarding the nature of propagating radicals and the radical concentration during the free-radical copolymerization of styrene (ST)/unsaturated polyester (UPE) resins. The hyperfine structure of the spectrum showed that there were three types of radicals in the ST/UPE copolymerization at low temperatures. Changes of these radical species were determined by the e.s.r, spectrum simulation method. The behaviour of trapped radicals formed during polymerization was also examined by temperature scanning

Посилання на статтю:

Free-radical crosslinking copolymerization of styrene/unsaturated polyester resins: 2. Electron spin resonance study / C. P. Hsu and L. James Lee* // Polymer. – 1993. – Vol 34. – P. 4506-4515.

Free-radical crosslinking copolymerization of styrene/unsaturated polyester resins: 2. Electron spin resonance study - Завантажити.