Synthesis and Properties of pH-Responsive Polymers with Cadaverine Side Groups |
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| Authors: | Hong Wang Yebang Tan Yuejun Zhu Xu Du Lei Zhang |
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| Institution: | 1. School of Chemistry and Chemical Engineering , Shandong University , Jinan, Shandong, P. R. China;2. Key Laboratory of Special Functional Aggregated Materials, Ministry of Education , Jinan, China;3. Technology Research Dept. CNOOC Research Center , State Key Laboratory of Offshore Oil Exploitation , Beijing, China |
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| Abstract: | A water-soluble monomer N1-(4-vinylbenzyl)-pentane-1,5-diamine dihydrochloride (VBPDA) with cadaverine (1,5-pentanediamine) group was synthesized. pH-responsive polymer with cadaverine group was obtained by free radical polymerization of VBPDA using 4,4-azobis(4-cyanovaleric acid) (ACVA) as the initiator. The structure and molecular weight of the polymer were characterized by FTIR, 1H-NMR and GPC-MALLS. Aggregation behavior of the polymer in aqueous solution was investigated by dynamic light scattering (DLS), UV-Vis and fluorescence measurements. The experimental results show that the fluorescence intensity of the aggregates decreases and the size of the aggregates increases with increasing pH due to the continuous dehydration of the cadaverine side groups. |
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| Keywords: | Polymer synthesis smart polymer biopolymers |
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