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|Título:||A contribution to the study of the hydrolysis of poli(epslilon-caprolactone).|
|Citação:||Guiné RPF. (1998) A contribution to the study of the hydrolysis of poli(epsylon-caprolactone). Livro de resumos do 18th Discussion Conference - Mechanical Behaviour of Polymeric Materials, PC14, Praga – República Checa.|
|Resumo:||Many polymeric materials suffer hydrolysis when in direct contact with water. The study of this process is of great importance, not only for knowing the behaviour of the polymer but also to help prevent that undesirable phenomena. To study whether the polymeric material poly--caprolactone suffers hydrolysis, the sample was kept in water for some days and was weighted every day to determine the weight loss. In order to accelerate the process of hydrolysis the samples were kept in a thermal bath. The experiment was carried out for 23 days and the results are presented in table 1. From this work it is possible to infer that in fact, when submitted for a period of 3 weeks to a thermal bath of water at 50ºC, the polymeric tablets suffered a loss of weight of about 0.4%. That weight loss is most likely due to the decomposition of some molecules of the polymer by the action of the water molecules in an hydrolysis process.|
|Aparece nas colecções:||ESAV - DIA - Documentos de congressos (comunicações, posters, actas)|
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|1998_Praga_Resumo_eps.pdf||591,35 kB||Adobe PDF||Ver/Abrir|
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