【摘要】 用对称透射法，测试聚酯（PET）取向非晶试样的二维广角X射线散射相干强度Ie（K，α），将不同方位角α上的Ie（K，α）非晶重叠峰曲线进行计算机分解，获得分子链间原子散射引起的二个峰为A（K＝0．126）、B（K＝0．169）；分子链内原子散射引起的五个峰分别为C（K＝0．304）、D（K＝0．553）、E（K＝0．374）、F（K＝0．465）、G（K＝0．606），K单位为nm－1．分析了它们的结构起源以及主要峰参数与α的关系，得到PET取向非晶态的细微结构信息．更多还原

【Abstract】 The two dimensional Wide Angle X-ray Scattering (WAXS) coherent intensity of oriented non-crystalline polyethylene tetrephthalate (PET) is determined by Symmet rical Transmission method; Besides, self-compiled WAXS Multi-peak Separation program 90 (MPS90) is used as well to separate the overlapped peaks at WAXS coherent intensity curves obtained at different azimuthal angles, thereof resulting in the two peaks caused by intermolecular atomic scattering, A(K=0.126) and B(K=0.169), and the other fives by intramolecular atomic scattering such as: C(K=0.304), D(K=0.553), E(K=0.374),F(K=0.465) and G(K=0.6o6) (Kunit: nm-1), of which the origin of structure and the curves of primary peak parameters as a function of azimuthal angles are analysed in detail,thus obtaining the fine structural imformation from oriented non-crystailine PET.更多还原