摘要
<正>用扭摆法测定了绝干69-杨在100～300℃范围内的内耗-温度曲线,发现了天然状态木素的玻璃化转变的内耗峰和测定了该转变的温度(0.5Hz)Ts(即Tg)约为215℃,提出了一种测定在天然状态下木素分子量的可行办法。
Abstract
By using the method of torsion pendulum, this paper has examined the Q-1~T curve of Populus deltoides Bartr. cv. "Lux" (ex, 1-69/55) from the rang of 100~300℃, and observed the internal friction peak of glass’s transition of natural lignin. Also this paper has measured the transition temperature (near 0.5 Hz) Ts (or Tg) 215℃. In addition, a method testing the molecular weight of lignin in nature has been presented.
王雅各;程鹏.
动态法测定杨木木素的玻璃化转变[J]. 南京林业大学学报（自然科学版）. 1988, 12(02): 81-85 https://doi.org/10.3969/j.jssn.1000-2006.1988.02.011
Wang Yage & Cheng Peng.
WITH THE DYNAMIC METHOD TO EXAMINE THE GLASS’ S TRANSITION OF POPULUS LIGNIN[J]. Journal of Nanjing Forestry University (Natural Sciences Edition）. 1988, 12(02): 81-85 https://doi.org/10.3969/j.jssn.1000-2006.1988.02.011
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