期刊
EUROPEAN POLYMER JOURNAL
卷 186, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2023.111859
关键词
CuAAC; Step -growth polymerization; Polypeptides; Star polymers; Circular dichroism; ?-Helix
A general methodology for synthesizing star polymers with a large number of polypeptide arms is presented. The synthesis involves the arm-first step-growth polymerization of bifunctional macromonomers using copper-catalyzed azide-alkyne cycloaddition. Star polymers with up to 18 poly-gamma-benzyl-L-glutamate (PBLG) arms have been successfully synthesized and characterized. The secondary structure of PBLG is found to be greatly influenced by the degree of chain packing/crowding.
A general methodology for the synthesis of star polymers with large number of polypeptide arms is described. The synthesis is based on the arm-first step-growth polymerization of bifunctional macromonomers by coppercatalyzed azide-alkyne cycloaddition. Star polymers with up to 18 poly-gamma-benzyl-L-glutamate (PBLG) arms have been synthesized and characterized. It is shown that the preferred secondary structure of PBLG is significantly affected by the degree of chain packing/crowding.
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