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Polybenzoxazine Materials from Renewable Diphenolic Acid
La síntesis de polímeros a partir de fuentes renovables como la biomasa es una forma viable de resolver los problemas relacionados con la contaminación del medio ambiente y la escasez de recursos derivados del petróleo usados como materias primas en la industria de los polímeros. Las polibenzoxazinas son una nueva clase de resinas termoestables cuya síntesis es de gran simplicidad y presentan propiedades interesantes de potencial aplicación en diversos campos, entre otros en la industria electrónica. Además, las benzoxazinas eliminan el problema de la liberación de subproductos de condensación, que presentan las resinas fenólicas convencionales, y no necesitan de un catalizador p...
A Manuscript of Ashes
In this “beautifully wrought” novel set in Franco-era Spain, a university student stumbles into a decades-old mystery (New York magazine). It’s the late sixties, the last dark years of Franco’s dictatorship. Minaya, a university student in Madrid, is caught up in the student protests and the police are after him. He moves to his uncle Manuel’s country estate in the small town of Mágina to write his thesis on an old friend of his uncle, an obscure republican poet named Jacinto Solana. The country house is full of traces of the poet—notes, photographs, journals—and Minaya soon discovers that, thirty years earlier, during the Spanish Civil War, both his uncle and Solana were in l...
