核磁共振碳谱(文献分析).ppt

* 1、前 言 在有机物中，有些官能团不含H，例如C=O，C=C=C,N=C=O等，官能团信息不能从1H NMR谱中获得，只能从13C NMR中得到。 特点： ·灵敏度低：为1H的1/6700； ·分辨能力高：谱线之间分得很开，容易识别； ·化学位移范围大：0~300ppm，1H NMR的20~30倍； ·掌握碳原子的信息，确定碳原子级数。 * 2、例题解析 例:分子式为C10H1203,13C NMR 谱如下，推导其可能结构 * 解析： 由分子式计算不饱和度:U=5 （可能有苯环、羰基等） * 3、文献① 3.1 摘要 用甲醛做溶剂，在碱性催化剂条件下，碳硼烷与双酚A反应合成高硼含量的可溶性酚醛树脂，然后利用红外光谱，碳谱和氢谱以及傅立叶变换红外光谱等分析其结构，得到结果。然后分别在900℃的氮气和空气条件下用TGA测定残炭率，结果分别为88.9%和92.9%。 Shi-cheng Qi, Guo Han,Synthesis and Characterization of Carborane Bisphenol Resol Phenolic Resins with Ultrahigh Char Yield，Chinese Journal of Polymer Science Vol. 33, No. 11, (2015), 1606-1617 * 3、文献① 3.2 合成原料 Shi-cheng Qi, Guo Han,Synthesis and Characterization of Carborane Bisphenol Resol Phenolic Resins with Ultrahigh Char Yield，Chinese Journal of Polymer Science Vol. 33, No. 11, (2015), 1606-1617 * 3、文献① 3.3 邻位碳硼烷双酚可溶性酚醛树脂合成路线 邻碳硼烷双酚可溶性酚醛树脂 Shi-cheng Qi, Guo Han,Synthesis and Characterization of Carborane Bisphenol Resol Phenolic Resins with Ultrahigh Char Yield，Chinese Journal of Polymer Science Vol. 33, No. 11, (2015), 1606-1617 * 3、文献① 3.3 邻位碳硼烷双酚可溶性酚醛树脂合成路线 邻碳硼烷双酚可溶性酚醛树脂 Shi-cheng Qi, Guo Han,Synthesis and Characterization of Carborane Bisphenol Resol Phenolic Resins with Ultrahigh Char Yield，Chinese Journal of Polymer Science Vol. 33, No. 11, (2015), 1606-1617 * 3、文献① 3.4 间位碳硼烷双酚可溶性酚醛树脂合成路线 间碳硼烷双酚可溶性酚醛树脂 Shi-cheng Qi, Guo Han,Synthesis and Characterization of Carborane Bisphenol Resol Phenolic Resins with Ultrahigh Char Yield，Chinese Journal of Polymer Science Vol. 33, No. 11, (2015), 1606-1617 * 3、文献① 3.5 1H NMR 13H-NMR spectra of (A) o-carborane bisphenol (1), and (B) o-carborane bisphenol resol phenolic resin * 3、文献① 3.6 13C NMR 13C-NMR spectra of (A) o-carborane bisphenol (1), and (B) o-carborane bisphenol resol phenolic resin * 3.7 TGA曲线 3、文献① Fig. 7 TGA curves of P1 and P2 under nitrogen and air (TGA curve of commercially obtained boron-containing phenolic resin (FB) is given as comparison.) * 3.8 结论 3、文献① 碳硼烷的引入使酚醛树脂具有超高的残炭率。特别是，在空气中比