文献类型：期刊文献

英文题名：Crystal growth and morphology of hindered phenol AO-60

作者：Cao, Yuanyi[1];Wang, Shaolei[2];Mou, Haiyan[1];Xu, Haiyan[1];Wu, Chifei[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Ctr Anal & Test, Shanghai 200237, Peoples R China

年份：2010

卷号：312

期号：10

起止页码：1747

外文期刊名：JOURNAL OF CRYSTAL GROWTH

收录：;EI(收录号：20101412820425);WOS:【SCI-EXPANDED(收录号:WOS:000277483100016)】；

基金：This work is supported by The National Natural Science Foundation of China (20674018).

语种：英文

外文关键词：Atomic force microscopy; Crystal morphology; Hopper crystal; Organic compounds

摘要：Crystal growth of a hindered phenol compound, tetrakis [methylene-3-(3-5-ditert-butyl-4-hydroxy phenyl) propionyloxy] methane (trade name AO-60), was successfully recorded by optical microscopy (OM) equipped with a hot stage. The morphology of AO-60 crystals, grown at 100 degrees C from amorphous state, appeared in the form of tetragonal-sloped step growth. Further study using scanning electron microscopy (SEM) and atomic force microscopy (AFM) experimentally demonstrated that AO-60 crystals had a hopper-like morphology, which had occurred rarely in the condition of organic compound crystals but predominantly rather to inorganic compound crystals in the reported literatures. The morphological features observed on the crystal surfaces suggested step growth and hopper growth mechanism. Besides, a raising around the edge of the AO-60 hopper crystal was also experimentally characterized for the first time. (C) 2010 Elsevier B.V. All rights reserved.