%0 Journal Article
%T Small-angle x-ray scattering study on the structure of crystal line polymer<br>小角x射线散射结晶聚合物结构的研究
%A Zhao Hui
%A Dong Bao-Zhong
%A Guo Mei-Fang
%A Wang Liang-Shi
%A Qiao Jin-Liang
%A <br>赵辉
%A 董宝中
%A 郭梅芳
%A 王良诗
%A 乔金梁
%J 物理学报
%D 2002
%I 
%X The three phase structure model of crystal line polymer is used to calculate the one dimensional electron density correlation function.The conclusion is that the definitions of lamellar thickness and invariant are not the same as those in the two phase structure. Then utilizing this result to analyze some specimens,we found that the crystalline transition layer thicknesses obtained by the correlation function method agree with those by the Ruland method, but the long periods obtained by correlation function are much different from the Bragg spacings. The reason is that the two methods to calculate crystalline transition layer thicknesses are all based on the non homogeneous area of the specimen electron density and have the same nature. However, the Bragg spacing and the correlation function long period represent different regions of the non homogeneous area.
%K small
%K angle x
%K ray scattering
%K crystal polymer
%K three
%K phase structure
%K correlation function<br>小角x射线散射
%K 结晶聚合物
%K 三相结构
%K 相关函数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=F861547068D143BE&yid=C3ACC247184A22C1&vid=987EDA49D8A7A635&iid=59906B3B2830C2C5&sid=E3511D325C01F2EB&eid=F1203DFCA08C83D7&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=14