Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Trevor N. Bowmer"'
Autor:
Trevor N. Bowmer, James H. O'Donnell
Publikováno v:
Radiation Physics and Chemistry (1977). 17:177-181
Dialkyl sulphones, RSO2R, have been considered as model compounds for the radiolysis of poly(olefin sulphone)s, {A figure is presented}. They show preferential C-S scission and SO2 elimination, attribute to the relatively low strengths of these bonds
Autor:
Alan E. Tonelli, Trevor N. Bowmer
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 24:1631-1650
This paper continues an investigation into the ethylene–vinyl chloride copolymers prepared by partial reduction of poly(vinyl chloride). The infrared spectra of the copolymers have been obtained and the individual resonances assigned. Each infrared
Publikováno v:
Polymer Degradation and Stability. 5:449-456
γ-Irradiation of polyolefins produces small amounts of volatile hydrocarbons. Their yields have been measured for irradiation of homopolymers of ethylene and copolymers with propene, 1-butene and 1-hexene at temperatures from 30 to 175°C. The alkan
Autor:
Trevor N. Bowmer, Alan E. Tonelli
Publikováno v:
Journal of Vinyl and Additive Technology. 8:98-102
Differential Scanning Calorimetry (DSC) measurements were performed on a series of ethylene-vinyl chloride copolymers (E-V) prepared via reductive dechlorination of poly(vinyl chloride) with tributyltin hydride. The copolymers were identical in chain
Publikováno v:
Journal of Macromolecular Science: Part A - Chemistry. 21:745-756
γ-Irradiation of copolymers of ethylene with propene, 1-butene, and 1-hexene, containing from 1 to 6 alkyl short chain branches per 1000 carbon atoms, at 25°C in vacuum, produced small amounts of n-alkanes with a maximum yield for the alkane corres
Autor:
James H. O'Donnell, Trevor N. Bowmer
Publikováno v:
Polymer. 18:1032-1040
Measurements of the yields of low molecular weight hydrocarbons after γ-irradiation of low density polyethylene (LDPE) in the solid and liquid phases have confirmed that the main products are ethane and butane. Alkene yields were small, contrary to
Autor:
Alan E. Tonelli, Trevor N. Bowmer
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 25:1153-1156
Publikováno v:
Polymer Bulletin. 2:103-110
Gamma irradiation of poly(3-methyl-1-butene sulphone) in the solid state at 20°C produced a mixture of isomers, viz. 3-methyl-1-butene (61%), 2-methyl-1-butene (2%) and 2-methyl-2-butene (37%). Similarly, poly(1-butene sulphone) yielded 1-butene (65
Autor:
James H. O'Donnell, Trevor N. Bowmer
Publikováno v:
Polymer Degradation and Stability. 3:87-95
The rates and mechanisms of the thermal degradation of nine alternating poly(olefin sulphone)s with different olefin structures have been investigated at 150°C and 200°C by a novel technique which is particularly suitable for studying the initial s
Publikováno v:
Journal of Applied Polymer Science. 24:425-439
Irradiation of 3 mm polystyrene sheet in air at 30/sup 0/C with ..gamma.. rays caused a rapid decrease in the tensile and flexural strengths and strains to fracture. These properties were decreased to 50% of their initial values after ca. 80 Mrads an