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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and Characterization of Novel Optically ctive Polyurethanes Containing 1,10-binaphthol
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Preparation and Characterization of Novel Optically ctive Polyurethanes Containing 1,10-binaphthol

机译：新型含1,10-联萘酚的光学活性聚氨酯的制备与表征

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摘要

Novel optically active polyurethanes (BPUs) based on chiral 1,10-binaphthol were synthesized via direct hydrogen transfer addition polymerization. The polymers were analyzed by FTIR, 1H NMR, DSC-TGA, CD spectra.The results showed that the specific rotation [a]25 D were 78.0- and +54.6for the S-BPU and R-BPUrespectively, and these polymers showed better thermal stability. The circular dichroism spectra of the chiral polymers were almost identical except that they gave opposite signals at each wavelength, and the infrared emissivity values of the S-BPU and R-BPU were 0.618 and 0.682, they displayed low infrared emissivity. Meantime the polymers implanted with PEG group exhibit better solubility, however thermal stability reduced to some extent. Some properties of the new optically active polyurethanes were reported.
机译：通过直接氢转移加成聚合反应合成了基于手性1,10-联萘酚的新型光学活性聚氨酯（BPU）。用FTIR，1H NMR，DSC-TGA，CD光谱分析了聚合物。结果表明，S-BPU和R-BPU的比旋光度[a] 25 D分别为78.0-和+54.6，这些聚合物表现出更好的热稳定性。手性聚合物的圆二色性光谱几乎相同，除了它们在每个波长下给出相反的信号，并且S-BPU和R-BPU的红外发射率值为0.618和0.682，它们显示出低的红外发射率。同时，植入有PEG基团的聚合物表现出更好的溶解性，但是热稳定性有所降低。报道了新型光学活性聚氨酯的一些性能。

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