苯封端还原态苯胺四聚体结晶形态的研究  

Crystal Morphology of Phenyl-capped Tetraaniline in the Leucoemeraldine Oxidation State

作　　者：周云春[1] 耿建新[1] 陈剑峰[1] 李杲[1] 周恩乐[1] 陈梁[2] 张万金[2] 

机构地区：[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 [2]吉林大学麦克德尔米德实验室,长春130012

出　　处：《高等学校化学学报》2003年第12期2300-2303,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 990 40 0 8;2 0 1740 43 );国家重点基础专项经费 (批准号 :G19990 64 80 5 )资助

摘　　要：研究了用溶液滴膜、甘油表面成膜以及溶液旋涂成膜等方法制备的苯封端还原态苯胺四聚体的结晶形态 .晶体的晶片厚度、晶体尺寸及结晶完善性均随溶液等温结晶温度的升高而增大 .齐聚物在较低过冷度下易于形成尺寸较大的晶体 .详细讨论了溶剂及基底与结晶形态的关系 .A series of crystals of phenyl-capped tetraaniline in the leucoemeraldine oxidation state were obtained with three different preparation methods and were observed directly under transmission electron microscope(TEM). The crystals that crystallized at a higher temperature have a more perfect structure than those at a lower temperature. Both the lamella thickness and the crystal size increase as the isothermal temperatures increase. The oligomer is apt to form a larger scale crystal under a low degree of supercooling. Additionally, the crystal morphology has an important relationship with the kind of substrate on which the oligomer grows, and it will also change with the variation of solvents in which tetraaniline dissolves.

关 键 词：苯胺四聚体 结晶形态 晶体尺寸 聚苯胺 苯封端还原态 制备 

分 类 号：O633.21[理学—高分子化学] O631.13[理学—化学]