Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Salvatore Ipsale"'
Publikováno v:
Polymer Degradation and Stability. 69:133-142
The outdoor ageing of ethylene–carbon monoxide alternating copolymer films, has been investigated by thermal analysis, infrared spectroscopy and scanning electron microscopy (SEM). Samples exposed to the sun light, in open air, for times ranging fr
Publikováno v:
Polymer Degradation and Stability. 65:329-335
The outdoor ageing of three ethylene-octene copolymer films having different values concerning crystallinity and thermal characteristics has been studied. The thermal oxidation strength of these films diminishes to only 3 min after 500 exposure hours
Publikováno v:
Polymer Degradation and Stability. 58:247-250
The outdoor ageing of poly(1-trimethylsilyl)-1-propyne (PTMSP) membranes has been studied mainly by means of differential scanning calorimetry (DSC), thermogravimetry, viscosimetry and infra-red spectroscopy. Membranes lose their integrity within 288
Publikováno v:
Polymer Degradation and Stability. 55:199-207
The outdoor ageing of a polypropylene (PP) cast film, free of stabilisers and exposed directly or covered by glass, has been studied mainly by means of differential scanning calorimetry (DSC) measurements. Time dependences of the enthalpies and the p
Publikováno v:
Polymer Degradation and Stability. 41:103-107
LDPE films exposed outdoors have been examined by UV spectroscopy. After the first 2500 h, the spectra show absorptions at 204 and 220 nm attributable to conjugated structures of the type which disappear after about 3000 h. After 9000 hours exposure
Publikováno v:
Angewandte Makromolekulare Chemie. 189:117-124
The rate constants of the natural degradation processes of low density polyethylene and polypropylene films have been calculated on the basis of the molecular weights of weathered samples. Moreover, the optical densities, obtained by means of IR spec
Autor:
Fiorenza Quasso, Salvatore Ipsale, Luigi Brambilla, Raffaele Gallo, Giovanni Consolati, Febo Severini, Chiara Castiglioni
The outdoor ageing of a commercial ethylene–propylene copolymer (Adflex) is investigated. Different techniques (infrared spectroscopy, thermal analysis, scanning electron microscopy, mechanical tests and positron annihilation lifetime spectroscopy)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::320de6e57593405766a21efb29cda8c4
http://hdl.handle.net/11570/1904069
http://hdl.handle.net/11570/1904069
Autor:
Agatino, Casale, Graziella, Zona, Armando, Cappadonia, Giuseppe, Trimarchi, Salvatore, Ipsale
Publikováno v:
Annali di chimica. 92(9)
In the current program for the preparation of an urban air map, this paper reports data obtained by the five base stations in the period 1997-2000 regarding traditional pollutants and gives the first results obtained in determining continuously benze