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宋剑斌1 张宏放1 莫志深1* 赵清香2
(1中国科学院长春应用化学研究所，高分子物理与化学国家重点实验室，
长春 130022, E-mail：mozs@ciac.jl.cn
2郑州大学材料工程系，郑州 450052)
尼龙1212是一类高性能的高分子材料，具有良好的物理、化学和机械性能。其晶胞参数已有报道1：α晶型: a = 0.49nm, b= 0.52nm, c = 3.23nm, α = 50°, β = 77° , γ = 64°；和 β晶型: a = 0.49nm, b = 0.802nm, c = 3.23nm , α = 90°, β = 77° , γ = 67°。本文采用作图法2，将尼龙1212衍射曲线分解为结晶及非晶部分，来计算尼龙1212（α晶型）的结晶度。
利用此方法计算结晶度可按下式计算：
参考文献
1. N. A. Jones, E. D. T. Atkins, M. J. Hill, Journal of Polymer Science: Part B: Polymer Physics, 2000, 38; 1209-1221.
2. 殷敬华, 莫志深主编, 现代高分子物理学，北京: 科学出版社，2001.
致谢
本工作受国家自然科学基金（No.270274049）和国家重点基金研究专项经费（G1999064806）资助。
The Degree of Crystallinity of Nylon 1212 by WAXD
Song Jianbin1 Zhang Hongfang1 Mo Zhishen1* Zhao Qingxiang2
1 State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, E-mail：mozs@ciac.jl.cn
2 College of Materials Engineering, Zhengzhou University, Zhengzhou 450052
The degree of crystallinity of nylon 1212, which isothermally crystallized at different temperature, was determined by WAXD. Based on the X-ray scattering intensity theory, the correction factors for three crystalline peaks and an amorphous peak of nylon 1212 were calculated and the formula of degree of crystallinity of nylon 1212 was derived by graphic multipeak resolution method. |
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