Zobrazeno 1 - 10
of 135
pro vyhledávání: '"D. J. Carlsson"'
Autor:
Yuwen Liu, Lucia Kuffova, K. Merrett, John V. Forrester, D. Grant, May Griffith, D. J. Carlsson, Mitchell A. Watsky
Publikováno v:
Biomacromolecules. 7:1819-1828
Porcine and recombinant human atelocollagen I solutions were cross-linked with a water soluble carbodiimide at various stoichiometries and collagen concentrations (5-20 w/w %). The resulting hydrogels were clear and, when used as cell growth matrices
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 185:283-293
The oxidation of high density polyethylene (HDPE), both unstabilised and vitamin E stabilised, has been studied by infrared (IR) and electron paramagnetic resonance (EPR) spectroscopies in the period following γ-irradiation at doses from 1 to 60 kGy
Publikováno v:
Polymer Degradation and Stability. 73:259-267
The effects of several phenolic antioxidants on the thermal and γ-initiated oxidation of HDPE has been studied. Antioxidants included both di-tert.butyl hindered phenols and vitamin E. For equivalent concentrations of phenol groups, vitamin E was co
Publikováno v:
Polymer Degradation and Stability. 73:269-280
Vitamin E was found to be a very effective antioxidant both in a model, liquid alkane, (teradecane) and in HDPE when oxidations at close to room temperature were initiated with γ-radiation. FTIR was used to follow changes in vitamin E in oxidising t
Publikováno v:
Journal of Membrane Science. 142:1-11
Infrared internal reflection spectroscopy (IR-IRS) and flux decline has been used to examine the build-up of adsorbed foulants on the surfaces of membranes during the treatment of the plug screw feed pressate (PSFP) from the sulfite digestion of wood
Autor:
Jacques Lacoste, Jean-Louis Philippart, D. Vaillant, D. J. Carlsson, J. Lemaire, Sophie Commereuc
Publikováno v:
Polymer Degradation and Stability. 57:175-182
Products resulting from the photo and thermal decomposition under vacuum of a pre-oxidized isotactic polypropylene (iPP) containing a known content of hydroperoxide have been examined. In contrast to the case of polyethylene, few products were retain
Publikováno v:
Journal of Vinyl and Additive Technology. 3:100-106
Volatile organic compounds and organochlorine species liberated by UV exposure of poly(vinyl chloride) (PVC) siding samples have been identified and preliminary quantification made. These volatiles included those remaining in a PVC sample after weath
Publikováno v:
Polymer-Plastics Technology and Engineering. 34:97-116
Hydroperoxide groups are widely believed to be critical intermediates in the oxidative degradation of many polymers, especially commodity polyolefins [34, 5 1-53]. Trace amounts of hydroperoxides in polyolefins such as polyethylene (PE) may be formed
Publikováno v:
Polymer Degradation and Stability. 43:1-7
The effects of sec. and ter. piperidinyl additives on oxidative resistance of γ-irradiated polypropylene have been studied over a quite wide range of additive concentrations. Tert. amines were the more effective in suppressing oxidation during the
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 31:715-722
The detailed oxidation products have been identified and compared from the γ-, photo-, and thermally-initiated oxidation of unstabilized polypropylene films. Products were identified and quantified by a combination of iodometric analysis and infrare