Síntesis de polímeros entrecruzados usando un nuevo monómero trifuncional

Mari Carmen Reyes-Angeles; Ana María Herrera-González; Nayely Trejo-Carbajal

doi:10.29057/icbi.v14iEspecial2.16807

Autores/as

Mari Carmen Reyes-Angeles Universidad Autónoma del Estado de Hidalgo https://orcid.org/0000-0002-9927-9819
Ana María Herrera-González Universidad Autónoma del Estado de Hidalgo https://orcid.org/0000-0002-7534-7004
Nayely Trejo-Carbajal Universidad Autónoma del Estado de Hidalgo https://orcid.org/0000-0003-4328-5213

DOI:

https://doi.org/10.29057/icbi.v14iEspecial2.16807

Palabras clave:

Monómero trifuncional, entrecruzamiento, polimerización

Resumen

El entrecruzamiento en polímeros mejora sus propiedades mecánicas, térmicas y químicas al incorporar monómeros multifuncionales que forman redes tridimensionales estables, rígidas y duraderas. En el presente trabajo se reporta la síntesis del monómero trifuncional N,N´-bisisopropil-anilin-hidroxipropilmetacrilato, NNHPMA, a base de N,N´-diglicidil-4-glicidiloxianilina (NNDG4GOA). El monómero NNHPMA se caracterizó mediante las técnicas espectroscópicas de FTIR y RMN ¹H. Debido a la presencia de tres dobles enlaces en su estructura, se empleó como agente entrecruzante de los monómeros: ácido metacrílico (AM), ácido acrílico (AA) y metilmetacrilato (MMA). La obtención de los copolímeros NNHPMA-co-AM, NNHPMA-co-AA y NNHPMA-co-MMA se llevó a cabo mediante polimerización vía radicales libres utilizando peróxido de benzoílo como iniciador. El análisis por sol-gel indica que los copolímeros presentan 78, 86 y 73 % gel, respectivamente. El monómero NNHPMA es un agente entrecruzante de los monómeros AM, AA y MMA. El monómero NNHPMA, actúa como un agente entrecruzante eficiente capaz de modificar de manera controlada las propiedades estructurales y funcionales de las redes poliméricas.

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