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1.为了进一步说明，共混物中的A用THF抽提，抽提后的共混物红外谱图如图X所示，抽提后的共混物几乎不含有A，即说明体系中不存在或者只发生很少量的反应，由此肯定图1所示的变化应该来自于体系的降解。 2. 鉴于实验过程PS中的苯环的量是不变的，所以以815波数处（对应于对位二取代苯环）的吸收峰为基准，观察1310处吸收峰的峰强，发现机械共混物的峰强相比溶液共混物均有明显降低，由此证明经历熔融加工的体系存在着化学的相互作用 |
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hongwei.ch(金币+2,VIP+0): 10-19 21:56
sirljz(金币+1):谢谢交流 2010-04-01 12:24
hongwei.ch(金币+2,VIP+0): 10-19 21:56
sirljz(金币+1):谢谢交流 2010-04-01 12:24
| For further illustration,A was extracted from the blend with THF, XRD of the remainder was shown in Figure X.which revealed that little A was included in the blend,that meaned no or few reactions took place in the system.so the change shown in Figure 1 was due to the degradation of the system. |
2楼2009-10-17 09:55:08
clearsky7228
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hongwei.ch(金币+12,VIP+0):谢谢 10-19 21:56
sirljz(金币+2):谢谢交流 2010-04-01 12:23
hongwei.ch(金币+12,VIP+0):谢谢 10-19 21:56
sirljz(金币+2):谢谢交流 2010-04-01 12:23
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1. To a further illustration , A of the blends was extracted with THF, and after extraction the infrared spectra of blends was shown in Figure X. Blends after the extraction almost did not contain A,i.e. it was clear that there was no or a small amount of reaction in the system , thus it is confirmed that the changes shown in Figure 1 should come from the degradation of the system. 2. In view of the amount of benzene ring in PS in the experiment process was constant, so when the absorption peak at 815 wave number (corresponding to the facing 2 replaced the benzene ring) as the base,and to observe the strengh of absorption peak at 1310 finding that the peak strengh of mechanical blend was significantly lower compared to the that of solution blends , thus proving the existence of chemical interaction in the system through melt processing. |
3楼2009-10-17 10:28:24