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Synthesis, structure, and properties of segmented carborane‐containing polyurethanes
Author(s) -
Luo Yumeng,
Lu Yafei,
Li Ning,
Li Yun,
Zhang Xiaoa,
Qi Shicheng
Publication year - 2015
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.42227
Subject(s) - prepolymer , carborane , polyurethane , materials science , thermal stability , fourier transform infrared spectroscopy , isocyanate , polymer chemistry , thermogravimetric analysis , composite material , chemical engineering , chemistry , organic chemistry , engineering
Novel segmented carborane‐containing polyurethane (PUR 2–5) is synthesized from hydroxyl‐terminated carborane‐containing prepolymer (P3) as soft segment and isocyanate‐terminated carborane‐containing prepolymer (P5) as hard segment by different ratio of P3 and P5. The prepared carborane‐containing polyarylesters and polyurethanes (PURs) are characterized by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (NMR). Their mechanical properties and thermal stability are measured, while the dosage of carborane biphenol is 5–10 wt %, the tensile strength is up to 20 MPa, and thermal gravimetric analyzer (TGA) curves indicate that the carborane group effectively reduces the degradation rate of carborane‐containing polyurethane, which is fairly stable above 300°C and with char yield exceeding 40%. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42227.