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Improvement of thermal properties of biodegradable polymer poly(3‐hydroxybutyrate) by modification with acryloyloxyethyl isocyanate
Author(s) -
Chen BorKuan,
Lo ShuenHung,
Shih ChienChang,
Artemov Arseny V.
Publication year - 2012
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23099
Subject(s) - isocyanate , materials science , polymer , biodegradable polymer , polyhydroxyalkanoates , thermal decomposition , monomer , copolymer , biodegradation , chemical engineering , polymer chemistry , polyurethane , composite material , organic chemistry , chemistry , engineering , genetics , biology , bacteria
Poly(3‐hydroxybutyrate) (PHB) is one type of polyhydroxyalkanoates often used as a biomedical material due to its biodegradable and biocompatible nature. However, the mechanical and thermal properties of PHB must be improved before it can be used in a wider variety of biomedical applications. To improve the thermal properties of biodegradable PHB, various reaction conditions were studied. Results demonstrate that reacting PHB with acryloyloxyethyl isocyanate (AOI), a monomer with dual functional groups, produces a modified PHB material with markedly improved thermal properties. The 10% thermal decomposition temperature for PHB modified with 5% AOI was 297°C, which was 26.8°C higher than original PHB. The T g also increased from 4°C to around 30°C for AOI‐modified materials. Additionally, due to the poly(ester‐urethane) structure and hydrogen bonding of polymer materials, the mechanical properties also improved. Thus, this modified PHB biodegradable polymer may have greater application as a biomedical material due to its enhanced thermal and mechanical properties. POLYM. ENG. SCI., 2012. © 2012 Society of Plastics Engineers