Título

SYNTHESIS AND CHARACTERIZATION OF PHEMA HYDROGELS BY INFRARED LASER

SYNTHESIS AND CHARACTERIZATION OF PHEMA HYDROGELS BY INFRARED LASER

Autoria

Passos, Marcele Fonseca; Bavaresco, Vanessa Petrilli; Munhoz, André Luiz Jardini; Filho, Rubens Maciel

DOI

10.5151/2594-5327-23327

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Resumo

Poly (2-hydroxyethyl methacrylate) (PHEMA) hydrogels are very versatile in medicine. They are biocompatible and hydrophilic and show similarities to the soft tissues of the body. Chemical agents, ultraviolet radiation and thermal curing can be used as synthesis techniques. However, depending polymerization type, PHEMA hydrogels may have different characteristics. The finals properties are related to the crosslinking density present in structure and define the application. 2-hydroxyethyl methacrylate (HEMA) monomer was varied at the 40, 60, 80% w/w and diethylene glycol dimethacrylate (DEGDMA) curing agent at the 1, 2, 3% w/w levels. Taking this into consideration, this paper presents the synthesis of PHEMA hydrogels by infrared laser. The characterization was performed by degree of swelling (EWC), gel fraction, scanning electron microscopy (SEM), FTIR and thermal analysis (DSC). Results demonstrated that it is possible to obtain PHEMA hydrogels by infrared laser through a short process, cheap and uniform heating.

 

Poly (2-hydroxyethyl methacrylate) (PHEMA) hydrogels are very versatile in medicine. They are biocompatible and hydrophilic and show similarities to the soft tissues of the body. Chemical agents, ultraviolet radiation and thermal curing can be used as synthesis techniques. However, depending polymerization type, PHEMA hydrogels may have different characteristics. The finals properties are related to the crosslinking density present in structure and define the application. 2-hydroxyethyl methacrylate (HEMA) monomer was varied at the 40, 60, 80% w/w and diethylene glycol dimethacrylate (DEGDMA) curing agent at the 1, 2, 3% w/w levels. Taking this into consideration, this paper presents the synthesis of PHEMA hydrogels by infrared laser. The characterization was performed by degree of swelling (EWC), gel fraction, scanning electron microscopy (SEM), FTIR and thermal analysis (DSC). Results demonstrated that it is possible to obtain PHEMA hydrogels by infrared laser through a short process, cheap and uniform heating.

Palavras-chave

PHEMA; Synthesis; Infrared laser; Hydrogels; Biomaterials.

PHEMA; Synthesis; Infrared laser; Hydrogels; Biomaterials.