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HomeMaterials Science ForumMaterials Science Forum Vol. 1059Synthesis, Characterization and Electron Beam...

Synthesis, Characterization and Electron Beam Curing of Poly(Glycerol Sebacate Methacrylate)

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Abstract:

Poly (glycerol sebacate) pre-polymer was synthesized and methacrylated to different degrees (PGSm-0.1, PGSm-0.2, PGSm-0.4) to impart processability using radiation technology. Spectroscopic analyses (FTIR and ¹H NMR) confirmed the presence of ester linkage in the poly (glycerol sebacate) chain and the methacrylate group in the derivatives. The degree of methacrylation (DM) computed from the ¹H NMR signal integration ranged from 0.1 to 0.4. The molecular weight and polydispersity increased with an increase in DM. The DSC thermograms suggested better elastomeric properties at ambient temperature, while the TGA showed no significant shift in the degradation parameters of PGS upon methacrylation. Electron beam curing of the PGSm samples was employed, and the resulting films were characterized for gel content, surface topography, and wettability. The crosslinked PGSm-0.2 and PGSm-0.4 samples exhibited high gelation at doses 5-50 kGy. However, no gelation above 15 kGy occurred in PGSm-0.1, suggesting that main chain scission reactions prevailed. The surface properties of the films obtained from the AFM and contact angle measurements revealed high surface roughness and wettability.

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Periodical:

Materials Science Forum (Volume 1059)

Pages:

111-116

DOI:

https://doi.org/10.4028/p-tn4e5y

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Online since:

April 2022

Authors:

Charito T. Aranilla*, Bin Jeremiah D. Barba, Jordan F. Madrid, Marianito T. Margarito, Persia Ada N. de Yro, Blessie A. Basilia

Keywords:

Electron Beam Curing, Gel Fraction, Methacrylation, Polyglycerol Sebacate, Surface Roughness, Wettability

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© 2022 Trans Tech Publications Ltd. All Rights Reserved

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