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CHEN0718

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[交流] 【求助完毕】36金币求助一段高分子方面的翻译

运动单元从一个平衡位置运动到另一个平衡位置的速度用松弛时间τ表示。高分子链中最小的运动单元称为链段。在某一固定温度下,当频率足够低,从而1/ω》τ(链段),高聚物表现为高弹态;当频率足够高时,从而1/ω《τ(链段),高聚物表现为玻璃态,而在1/ω≈τ(链段)时,高聚物发生玻璃花转变,所以对同一种聚合物,施加的频率越高,达到玻璃花转变所需要的温度越高,符合Arrhenius定理。

[ Last edited by qingshaojun0823 on 2009-9-10 at 14:28 ]
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jw227

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linghanyuan(金币+1,VIP+0):谢谢交流 9-9 21:02
CHEN0718(金币+36,VIP+0):谢谢,比我翻译的好一些 9-9 21:18
The relaxing speed of motor Unit from one equilibrium position to another was expressed with τ . The smallest motor unit in Polymer chain is called  chain segment. At a fixed temperature, when the frequency was low enough and 1/ω》τ (chain segment), the polymer showed high elastic state. When the frequency was high enough and 1/ω《τ (chain segment), the polymer showed glassy state. However, when 1/ω≈τ(chain segment), the polymer generated glass flower transformation. Thus,  higher the frequency applied ,  higher temperature was required to achieve glass flower transformation for the same kind of polymer. This is Consistent with Arrhenius theorem.

[ Last edited by jw227 on 2009-9-9 at 19:47 ]
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2楼2009-09-09 19:45:05
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