Zobrazeno 1 - 10
of 21
pro vyhledávání: '"M. C. Senake Perera"'
Publikováno v:
Polymer International. 50:700-706
The structure of the product from the free radical bulk copolymerization of methyl methacrylate (MMA) and allyl acetate (AAc) was investigated. The mole fraction of AAc plays an important role in the copolymerization of these two monomers. Molecular
Publikováno v:
Polymer International. 50:597-605
Free radical bulk copolymerization of methyl methacrylate (MMA) and allyl acetate (AAc) has been investigated using electron spin resonance (ESR) and FT-near infrared (FTNIR) spectroscopy. Data are used to evaluate the rate constants. The mole fracti
Publikováno v:
European Polymer Journal. 37:167-178
The structure and dynamics of the binary blends PVC/NBR and PVC/ENR, and the PVC/ENR/NBR ternary blend were investigated by dynamic mechanical analysis and solid state NMR. Samples were prepared by mechanical blending at 150°C. The effect of the cha
Autor:
M. C. Senake Perera
Publikováno v:
Journal of Applied Polymer Science. 82:3001-3012
Methyl methacrylate and 2-ethyl hexyl acrylate were copolymerized in the presence of different crosslinkers with free-radical initiation. The double-bond conversion was monitored with in situ Fourier transform near-infrared spectroscopic techniques.
Autor:
M C Senake Perera
Publikováno v:
Polymer International. 49:691-698
The mechanism of radiation-induced structural changes in epoxidized natural rubber was investigated using nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy. Samples were irradiated both under vacuum and in air. Becau
Publikováno v:
European Polymer Journal. 36:241-253
Pre-polymers prepared by modifying divinyl benzene (DVB) by introducing di methyl siloxane units of different chain lengths were polymerised with DVB using free radical initiators. The double bond conversion and radical formation were monitored using
Publikováno v:
Polymer-Plastics Technology and Engineering. 38:939-954
In the quest to improve the thermooxidative aging of the poly(vinyl chloride)/epoxidized natural rubber (PVC/ENR) blend, nitrile rubber (NBR) was incorporated into the blend to yield a ternary blend of PVC/ENR/NBR. A Brabender Plasticorder with a mix
Autor:
M. C. Senake Perera
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 37:1141-1153
Methyl-methacrylate-grafted natural rubber was prepared by free radical polymerization of methyl methacrylate in natural rubber latex, and their structure and dynamics were investigated by dynamic mechanical analysis and solid-state nuclear magnetic
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 34:971-984
GC, GC/MS, GPC, and Solution NMR spectra were used to study the γ radiolysis of polyisobutylene (PIB) in vacuum to different total doses (0-900 kGy) and at different temperatures (77-423 K). NMR spectra show a large number of new resonances with rel
Publikováno v:
Journal of Macromolecular Science, Part A. 30:633-644
The dependence on molecular structure of the effects of high energy radiation on a variety of elastomers has been examined by lH- and 13C-NMR spectra in solution, swollen gel, and the solid state. Scission and crosslinking yields obtained for an ethy