Modification of Some Hyperbranched Polyols with Oligo (Ethyleneoxide) Units on the Way to New Applications

作者：Amin A^*; Rehim M Abdel; Mohamed H

来源：Polymer - Plastics Technology and Engineering, 2008, 47(12): 1250-1255.

DOI：10.1080/03602550802497669

• Amphiphilic polymers
• Critical micelle concentration
• Ethyleneoxide units
• Hyperbranched polymers
• Surface tension

Three different hyperbranched polymers (H1, H2, and H3) were prepared. The H1 and H2 are hyperbranched polyesteramide polymers; however, H3 is a poly(urea-urethane) hyperbranched polymer. The three polymers were treated with Br-ended surfactant units, which were prepared via simple reaction of Tergitol Np-50 (S) as surfactant with bromoisobutyrylbromide. New ended polymers resulted as H1S, H2S, and H3S with new ethyleneoxide units. Critical micelle concentration (CMC) was studied for the newly prepared polymers (H1S, H2S, H3S) and was compared with the original ones (H1, H2, H3) on the way to involve the new modified polymers in various industrial applications. The CMC was determined by the surface tension technique employing the platinum ring method. It was found that CMC could be arranged in the following ascending order: H3SH2SH1SH3SH2H1.

• 出版日期2008