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Characterization and use of ultraviolet‐reactive low‐molecular‐weight polyhydroxybutyrate to prepare biodegradable acrylates
Author(s) -
Hong ShinnGwo,
Hsu HengWei,
Ye MinTzung
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39501
Subject(s) - polyhydroxybutyrate , fourier transform infrared spectroscopy , biodegradation , acrylate , materials science , monomer , acrylic acid , polymer chemistry , chemical engineering , acrylate polymer , ultimate tensile strength , polymer , composite material , organic chemistry , chemistry , genetics , bacteria , engineering , biology
The characterizations of prepared low‐molecular‐weight polyhydroxybutyrate (LMWPHB) and the properties of LMWPHB photopolymerized with hydrophilic and hydrophobic acrylic monomers were studied with 1 H‐NMR spectroscopy, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy, Instron tensile testing, and biodegradation tests. The results of 1 H‐NMR and FTIR spectroscopy confirmed that the prepared LMWPHB had transformed unsaturated ends that were photoreactive under UV light. The tensile strengths of the LMWPHB/acrylates decreased with increasing content of the added biodegradable LMWPHB because of the relatively long chains and large equivalent molar weights of LMWPHB. However, the flexibility of LMWPHB/acrylates changed differently with the type of acrylic monomer used. The LMWPHB/hydrophilic acrylate had a much more rapid biodegradation rate than the LMWPHB/hydrophobic acrylate because of the fast penetration of microorganisms. We demonstrated that the prepared LMWPHB could be used to control the biodegradation properties of acrylates and then could potentially be applied in biomedical fields. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 39501.