Oligomeric poly(ether‐imide)s bearing ortho trifluoromethyl groups: Solubility,thermal studies,and optical properties |
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| Authors: | Ignacio A Jessop Luis Hernán Tagle Deysma Coll Pablo Ortiz Germán Pérez Claudio A Terraza Alain Tundidor‐Camba |
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| Affiliation: | 1. Laboratorio de Materiales Orgánicos y Poliméricos, Departamento de Química, Facultad de Ciencias, Universidad de Tarapacá, Av. General Velásquez 1775, Box 7‐D, Arica, Chile;2. Research Laboratory for Organic Polymers (RLOP), Department of Organic Chemistry, Pontificia Universidad Católica de Chile, P.O. Box 306, Post 22, Santiago, Chile;3. Núcleo de Química y Bioquímica, Facultad de Ciencias, Universidad Mayor, Santiago, Chile |
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| Abstract: | In the development of processable high‐temperature materials, six new aromatic poly(imide)s based on diamines containing ortho trifluoromethyl groups, ether linkages and R,R‐methylenes moieties (R = Me or Ph) and previously reported dianhydrides have been synthesized vía polycondensation reactions. All polymers were obtained with good yields, were soluble in a variety of polar aprotic solvents, and exhibited inherent viscosity (ηinh) values between 0.15 and 0.20 dL g?1, which is indicative of low molecular‐weight species. Preliminary studies of their physical properties were carried out. The new materials were transparent in the visible region and they exhibited thermal decomposition temperatures ranging from 475 to 545 °C and glass‐transition temperatures varying from 288 to 304 °C. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 46613. |
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| Keywords: | polycondensation polyimides thermal properties |
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