Graft chain propagation rate coefficients of acrylic acid in melt graft (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Graft chain propagation rate coefficients of acrylic acid in melt graft (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Alternative label

• Shi Q., Zhu L.C., Cai CL., Yin JH., Costa G. (2006)
  Graft chain propagation rate coefficients of acrylic acid in melt graft
  in Polymer (Guildford)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Shi Q., Zhu L.C., Cai CL., Yin JH., Costa G. (literal)

Pagina inizio

• 1979 (literal)

Pagina fine

• 1986 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 47 (literal)

Rivista

• Polymer (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Giovanna Costa: CNR Ismac Ge Qiang Shi , Lian-Chao Zhu a, Chuan-Lun Cai , Jing-Hua Yin: State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, ChangChun 130022, China (literal)

Titolo

• Graft chain propagation rate coefficients of acrylic acid in melt graft (literal)

Abstract

• Graft chain propagation rate coefficients (kp,g) for grafting AA onto linear low density polyethylene (LLDPE) in the melt in ESR tubes have been measured via Fourier transform infrared (FTIR) spectroscopy and electron spin resonance (ESR) spectroscopy in the temperature range from 130 to 170 8C. To exclude the effect of homopolymerization on the grafting, the LLDPE was pre-irradiated in the air by electron beam to generate the peroxides and then treated with iodide solution to eliminating one kind of peroxides, hydroperoxide. The monomer conversion is determined by FTIR and the chain propagation free-radical concentration is deduced from the double integration of the well-resolved ESR spectra, consisting nine lines in the melt. The temperature dependence of kp,g is expressed. The magnitude of kp,g from FTIR and ESR analysis is in good agreement with the theoretical data deduced from ethylene-AA copolymerization, suggesting this method could reliably and directly provide the propagation rate coefficient. The comparison of kp,g with the data extrapolated from solution polymerization at modest temperature indicates that the extrapolated data might not be entirely fitting to discuss the kinetics behavior in the melt. (literal)

Prodotto di

• Istituto per lo studio delle macromolecole (ISMAC) (Istituto)
• Catalisi per nuove architetture macromolecolari e sistemi polimerici nanostrutturati e biomimetici (PM.P02.005.003) (Modulo)

Autore CNR

• GIOVANNA COSTA (Unità di personale interno)

Incoming links:

Prodotto

• Istituto per lo studio delle macromolecole (ISMAC) (Istituto)
• Catalisi per nuove architetture macromolecolari e sistemi polimerici nanostrutturati e biomimetici (PM.P02.005.003) (Modulo)

Autore CNR di

• GIOVANNA COSTA (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Polymer (Rivista)