私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

當前位置:群英聚首 > 論文著作 > 正文
Surface phase separations of PMMA/SAN blends investigated by atomic force microscopy.
來源:廖永貴副教授個人網站 發布日期:2009-09-22
作者:Gangyao Wen, Xue Li, Yonggui Liao, Lijia An.
關鍵字:Polymer 2003, 44 (14): 4035-4045.
論文來源:期刊

The thin films of poly(methyl methacrylate) (PMMA), poly(styrene-co-acrylonitrile) (SAN) and their blends were prepared by means of spin-coating their corresponding solutions onto silicon wafers, followed by being annealed at different temperatures. The surface phase separations of PMMA/SAN blends were characterized by virtue of atomic force microscopy (AFM). By comparing the tapping mode AFM (TM-AFM) phase images of the pure components and their blends, surface phase separation mechanisms of the blends could be identified as the nucleation and growth mechanism or the spinodal decomposition mechanism. Therefore, the phase diagram of the PMMA/SAN system could be obtained by means of TM-AFM. Contact mode AFM was also used to study the surface morphologies of all the samples and the phase separations of the blends occurred by the spinodal decomposition mechanism could be ascertained. Moreover, X-ray photoelectron spectroscopy was used to characterize the chemical compositions on the surfaces of the samples and the miscibility principle of the PMMA/SAN system was discussed.

Copyright © 2005 Polymer.cn All rights reserved
中國聚合物網 版權所有
經營性網站備案信息

京公網安備11010502032929號

工商備案公示信息

京ICP證050801號

京ICP備12003651號

主站蜘蛛池模板: 岐山县| 昌江| 醴陵市| 汨罗市| 通许县| 襄城县| 岚皋县| 称多县| 彭泽县| 新绛县| 东安县| 砚山县| 扶风县| 万宁市| 玉树县| 特克斯县| 肇源县| 丽水市| 德兴市| 宁津县| 沈丘县| 秭归县| 泌阳县| 太谷县| 泊头市| 常山县| 梨树县| 乡宁县| 五台县| 栾川县| 嘉兴市| 克什克腾旗| 永和县| 翁源县| 鹰潭市| 高台县| 三台县| 尉氏县| 蓝田县| 高要市| 吴忠市|