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Thermal behaviour of TEGMMA copolymers obtained by photopolymerization using ir...
Rigoli,I. C.; Schmitt,C. C.; Ramos,L. A.; Neumann,M. G.; Cavalheiro,E. T. G.Copolymers of methyl methacrylate (MMA) and triethyleneglycol dimethacrylate (TEGDMA) obtained by photoinitiated polymerization using Fe(III) complexes were submitted to thermogravimetry (TGA) under dynamic air atmosphere and N2, and differential scanning calorimetric analysis (DSC). Thermal events were observed only between 90 - 110 ºC. Glass transitions were observed at ca. 100 ºC, followed by an exothermic p...
The triplet state of the ladder-type methyl-poly(p-phenylene) as seen by pulse ...
Monkman, A. P.; Burrows, H. D.; Hamblett, I.; Navaratnam, S.; Scherf, U.; Schmitt, C.The lowest triplet state of a ladder poly(p-phenylene) (MeLPPP) has been produced by sensitised energy transfer following pulse radiolysis of benzene solution, and absorbs at 1.34 eV with a lifetime [greater-or-equal, slanted]170 [mu]s. An S0-T1 energy separation of 2.15 ± 0.07 eV was determined, in excellent agreement with recent phosphorescence measurements, confirming the validity of the technique for the de...
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