Synthesis of novel star-like hyperbranched polymers with poly(amido amine) core and poly(l-lysine) shell |
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| Authors: | Huan-Bing Wang Cai-Yuan Pan |
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| Affiliation: | a Department of Polymer Science and Engineering, University of Science and Technology of China, No. 96, Jinzhai Road, Hefei, Anhui 230026, People’s Republic of China
b State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun, Jilin 130022, People’s Republic of China |
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| Abstract: | Hyperbranched poly(amido amine)s containing vinyl and hydroxyl groups were successfully synthesized via Michael addition polymerization of triacrylamide (TT) and 3-amino-1,2-propanediol (APD) with equal molar ratio in feed. 1H, 13C and HSQC NMR techniques were used to clarify the structure of hyperbranched polymers and polymerization mechanism. The Michael addition reaction of hyperbranched poly(1TT-1APD)s with primary amine-terminated poly(ε-benzyloxycarbonyl-l-lysine)s [PLys(Z)] yielded a star-like hyperbranched polymers with poly(1TT-1APD) core and Plys(Z) shell. The Z groups in PLys(Z) were removed under acidolysis, and thus star-like hyperbranched polymers with hydroxyl groups inside and primary amine groups outside were obtained successfully. |
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| Keywords: | Hyperbranched Michael addition Poly( smallcaps" >l-lysine) PAMAM |
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