THERMAL CROSSLINKING

Crosslinking, Thermal and Mechanical Properties of Thermoplastic and Phenolic Resin Systems A Bibliography1", PLASTEC Note 11 (1966) 16) N.E. Beach, Glossary of... 

Network maturing and competing side reactions also occur which do not lead to effective crosslinks. Thermal decomposition leads to the following reactions ... 

Recombination of macroradicals, which are generated either chemically or i ysi-cally, is one of the steps of the free radical medianism of crosslinking. Thermally unstable cmnpounds such as peroxides and azo compounds are usually used for free radical generation. The physical route of free radical generation in polyolefins includes mostly p-radiation (faetatrones) and gamma rays (radioactive isotopes). In some cases, a comlaned effect of microwave excitation and a suitable peroxide, ultraviolet light, and a photosensitizer may be used,... 

Keywords Diethynylbenzene-silylene / Carborane / Hybrid / Crosslinking / Thermal Stability... 

This was followed by casting a film, drying, and raising the temperature to induce crosslinking. For example, the urethane polymer was crosslinked thermally by reaction with triols, while the polyacrylate was essentially crosslinked through sulfur and double bonds by a free-radical process. In this manner, grafting reactions between the two polymers were minimized. 

Polyquino1ines, polyamides, polyquinoxa1ines, and polybenzimidazoles, all containing biphenylene units, crosslink thermally, with or without the aid of transition metal catalysts. 

After the sols have been applied to substrates, the reactive organic groups R are crosslinked thermally or by UV/IR radiation. 

Vaz, C.M., De Graaf, L.A., Reis, R.L. and Cunha, A.M. (2003) Effect of crosslinking, thermal treatment and LTV irradiation on the mechanical properties and in vitro degradation behavior of several natural proteins aimed to be used in the biomedical field. Journal of Materials Science Materials in Medicine 14 (9) 789—796. 

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