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SYNTHESIS AND POLYMERIZATION OF 3-OXOBORNYL METHACRYLATE

机译:甲基丙烯酸3-氧苯硼酯的合成与聚合

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The new chiral monomer 3-oxobornyl methacrylate (OBMA) was synthesized from (+)-camphor. Homopolymerization of OBMA and copolymerization of OBMA with styrene were carried out in benzene in the presence of AIBN. The effect of concentration, solvent, temperature, and reaction time on the copolymerization were investigated. It was found that the absolute value of the specific rotation of poly(OBMA-co-St) increased by increasing the OBMA unit content. A small deviation from linearity was observed, which suggests that asymmetry is not introduced into the copolymer main chain. Temperature and solvent effects on the specific rotation of the chiral polymers were investigated. The results suggest that chiral polymers contain no helix conformation. Inspecting the spectra of optical rotatory dispersion and circular dichroism, we found that the chiral polymers exhibit a strong negative Cotton Effect around 310 nm. (C) 1996 John Wiley & Sons, Inc. [References: 12]
机译:从(+)-樟脑中合成了新的手性单体甲基丙烯酸3-氧冰片酯(OBMA)。在AIBN存在下,在苯中进行OBMA的均聚和OBMA与苯乙烯的共聚。研究了浓度,溶剂,温度和反应时间对共聚的影响。发现通过增加OBMA单位含量,聚(OBMA-co-St)的比旋光的绝对值增加。观察到线性的小偏差,这表明不对称性未引入共聚物主链中。研究了温度和溶剂对手性聚合物比旋光度的影响。结果表明手性聚合物不包含螺旋构象。检查旋光色散和圆二色性的光谱,我们发现手性聚合物在310 nm附近表现出很强的负棉花效应。 (C)1996 John Wiley&Sons,Inc. [参考:12]

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