Add time:09/25/2019 Source:sciencedirect.com
A new symmetric aromatic diamine containing diphenylsilarylene and oxyphenyl units was synthesized and characterized. This diamine was used further for preparing poly(amide)s (O-PAs) when reacted with dicarboxylic acids containing diphenylsilarylene groups. Additionally, a poly(amide) without the oxyphenyl moieties in its structure was prepared by using the same polymerization method and was used as reference (PA-ref). All the PAs were characterized by spectroscopic, morphological, optical and thermal techniques. Likewise, their molecular weight was estimated by viscosity inherent measurements and MALDI-TOF mass spectrometry, and their solubility behavior was also studied. The results of these characterization showed that the incorporation of oxyphenyl moieties largely modifies the properties of the poly(amide)s, in accordance with the higher flexibility of the chain and their packaging possibilities.
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