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The pyrolysis GC/MS in the presence of tetramethyl ammonium hydroxide (TMAH) was used to detect anhydride formed in photo-oxidation of poly(butylene terephthalate) (PBT). It was decided that to react anhydride with TMAH to give methyl 4-methoxybutyrate (reaction product). It was confirmed that...
Polymeric composites for automotive window seal applications are generally exposed to complex service environment conditions. The fundamental physico-chemical processes that control the durability of such composite systems on a micro and macroscopic level were evaluated in the present case using...
The kinetic parameters and the structural change of thermal degradation of phenolic resin/silica hybrid ceramers with different mixing ratios were investigated. The activation energies of thermal degradation were calculated by the methods of Kissinger, Friedman and Ozawa from a conventional...
The interest on recycled materials from post-consumer polymers present in discarded commercial packaging has gained increasing attention. The development of new engineering materials based on degraded polymers is an interesting possibility. Blends of low cost plastics such as polyolefins,...
The first step of the thermooxidative and thermal decomposition of some chloromethylated polysulfones (CMPSF) with various degrees of substitution has been studied by thermogravimetry (TG) and thermal volatilization analysis (TVA). A step occurring at lower temperatures 260–370°C is particular...
Thermal degradation of poly(3-(1-cyclohexyl)azetidinyl methacrylate) has been studied using a system consisting of a degradation tube, with a condenser for product collection of a gas phase IR cell and a rotary pump, and thermogravimetry (TG). Product analyses were performed by IR, GC–MS, 1 H...
Benzotriazole, triazine and hindered piperidine stabilisers have been incorporated into a copoly-methyl methacrylate/butylacrylate film that contains silica as a matting agent in order to investigate the effect of the stabilisers on photo-oxidation. The mode of addition of the stabilisers have...
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 from 0 to 480 h have been investigated. After 480...
Quantitative analysis of thermal degradation of poly(phenylene ether) (PPE) has been attempted by a computer simulation model named “Molic mouse model”. The model was designed to simulate individual steps, each corresponding to an organic reaction in the thermal degradation. The rearrangement...
The preparation and polymerisation of 4-benzenesulfonylbenzyl methacrylate are described. Thermal degradation of poly(4-benzenesulfonylbenzyl methacrylate) (poly(BSBzMA)) was studied by thermogravimetry (TG), FT–IR and NMR. Programmed heating was carried out at 10°C/min −1 from room...
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