Dilational Rheological Properties of Fluorocarbon Modified Poly(acrylamide)s at the Air/Water Surface

被引:6
作者
Che, Yu-Ju [1 ,2 ]
Cao, Jie [1 ]
Gong, Hou-Jian [2 ]
Xu, Gui-Ying [2 ]
Tan, Yebang [1 ,2 ]
机构
[1] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China
[2] Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Peoples R China
关键词
Dilational rheological properties; fluorocarbon; polymer adsorption layers; surface viscoelasticity; WATER-SOLUBLE COPOLYMERS; DROP SHAPE-ANALYSIS; AQUEOUS-SOLUTIONS; POLY(ETHYLENE OXIDE); POLYMER-SOLUTIONS; THIN-FILMS; TENSION; ADSORPTION; INTERFACE; VISCOELASTICITY;
D O I
10.1080/01932691003656698
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A series of fluorocarbon modified poly(acrylamide)s containing low amounts (0.1-1.5 mol%) of fluorocarbon (CF3(CF2)(5)-) are synthesized by copolymerization of acrylamide with 2-(perfluorohexyl) ethyl acrylate). The dynamic surface tension results show that the efficiency and effectiveness of the copolymers to lower surface tension increase with increasing the fluorocarbon content. The results of surface dilational viscoelasticity show that with the increase of the fluorocarbon content, the dilational viscoelasticity increases at the low concentration (< 0.5 wt%), but firstly increases and then decrease at high concentration (> 0.5 wt%). Furthermore, temperature has effect on the dilational viscoelasticity of the adsorbed layer in different extents.
引用
收藏
页码:174 / 184
页数:11
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