72 research outputs found
Carbon Tetrachloride as Thermoporometry Liquid-probe to Study the Cross linking of Styrene Copolymer Networks
Mesh Size Distributions (MSDs) of swollen cross linked styrene copolymer networks have been measured by thermoporometry using CCl4 as a probe liquid. All numerical relationships required for the calculation of the MSD were established for both the liquid-to-solid and the solid-to-solid thermal transitions of CCl4 and successfully validated on test samples. It was found that the polymer network, for both thermally and photo-cross linked materials, was completely built in about four hours of exposure. A clear correlation was established between the average mesh size of the swollen polymer network on the one hand and the benzoyl peroxide groups content and swelling ratio on the other hand
Polymeric materials temporality: application ime vs lifetime durability
International audienc
Cycle de vie des materiaux polymeres : de la durabilite a la temporalite
International audienc
Photooxidation of polyoctenamer: viscoelastic assessment of gel formation
International audienc
In situ detection of hindered amine stabilizer consumption in polymer through oxidation by indirect electron spin resonance
International audienc
Step-scan FTIR and photoacoustic detection to assess depth profile of photooxidized polymer
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