Synthesis by Different Methods and Characterization of Hyperbranched Polyurethane
作者:Guangmei Chen、Chao Liu、Dongfeng Hu
DOI:10.14233/ajchem.2013.oh8
日期:——
Hyperbranched polyurethane (HBPU) samples are synthesized by two different methods from isophorone diisocyanate, 1,4-dihydroxybutane and diethanolamine generation by generation. And two series of samples are marked HBPU1s and HBPU2s. FTIR measurement is used to characterize the structure of the samples. DSC and TG measure the thermal properties of the samples. The results indicate that the hyperbranched structure of the polyurethane is consistent with theoretical design through controlling the feed ratio. The intensity of hydrogen-bonded interaction in HBPU1s is stronger than that in HBPU2s. Two series samples have same thermal stability.
超支化聚氨酯(HBPU)样品由异佛尔酮二异氰酸酯、1,4-二羟基丁烷和二乙醇胺通过两种不同的方法逐代合成。两个系列的样品分别标记为HBPU1s和HBPU2s。 FTIR 测量用于表征样品的结构。 DSC 和 TG 测量样品的热性能。结果表明,通过控制投料比,聚氨酯的超支化结构与理论设计相符。 HBPU1 中的氢键相互作用强度强于 HBPU2 中的氢键相互作用强度。两个系列样品具有相同的热稳定性。