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用Ruland方法计算了氯仿可溶级分低分子量聚噻吩(PT_1)热处理前后的结晶度。热处理后结晶度及微晶尺寸均有明显提高。测量及计算晶胞参数证明,PT_1在晶态下具有近似平面伸展构象,提出了初步的结构模型。热处理前后的PT_1给出了明确可归属的红外吸收谱带。
The degree of crystallinity of chloroform soluble fraction low molecular weight polythiophene (PT_1) before and after heat treatment was calculated by Ruland method. After heat treatment, the crystallinity and crystallite size are obviously improved. Measurement and calculation of the unit cell parameters show that PT_1 has an approximately planar extension conformation in the crystalline state and a preliminary structural model is proposed. PT_1 before and after the heat treatment gave a clearly attributable infrared absorption band.