5-tri( n -hexadecyloxy)benzoyloxy polyoxyethylene methacrylate was synthesized by esterification of polyoxythylene (molecular weight M=1000) with 3
4
5-tri(n-hexadecyloxy)benzoyl chloride and followed by methacrylic chloride.The compound was then characterized by means of NMR and FTIR
elementary analysis.Moreover
a new kind of hydrophobically modified alkali-soluble emulsion copolymer (DHASE) was synthesized by emulsion copolymerization of amphiphilic macromonomer 6 with mathacrylic acid and ethyl acrylate.As a comparison
an alkali-soluble emulsion copolymer (MAAEA) of mathacrylic acid and ethyl acrylate was synthesized also.The rheological properties of DHASE and MAAEA aqueous solutions under different solid contents and pH values were studied using controlled stress rheometer.It was found that DHASE aqueous solutions had outstanding alkali-thickening and thixotropy properties and larger zero shear rate viscosity than MAAEA aqueous solutions when pH 6.8 and the solid content of copolymer 1.0 wt%.At the same time
the storage modulus G' was always larger than the loss modulus G over the entire range of frequencies for DHASE aqueous solutions
suggesting formation of physical network structure due to hydrophobic associations of dendron alkyl trails in DHASE aqueous solutions.On the contrary
the MAAEA aqueous solution exhibited Newtorian fluid behavior and its G was always smaller than G' under the same condition.The results demonstrated the potential of this novel amphiphilic dendron-coil macromonomer in hydrophobically modified alkali-soluble emulsion copolymers and associative thickeners in the future.
Synthesis of Self-demulsification Thermosensitive Polymeric Surfactants and Their Application in Emulsion Polymerization
Rheological Behavior of Hydroxyethylacrylate/Sodium Acryloyldimethyl Taurate Copolymer Aqueous Solution
Synthesis of Water-soluble Azo Initiator with Hydrophobic Long Chain and Study on Associative Effect of Hydrophobically End-capped Polymer
Studies on the Radical Emulsion Polymerization of Styrene in the Presence of Chain Transfer Monomer
PREPARATION AND PROPERTIES OF A NEW POLYMERIZABLE ANTHRAQUINONE DYE AND ITS COVALENTLY COLORED POLYMER LATEX
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College of Chemical Engineering, Fuzhou University
Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University
Infinitus (China) Company Ltd
State Key Laboratory of Polymer Materials Engineering, Polymer Institute of Sichuan University
School of Materials Science and Engineering, Changzhou University