期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 131, 期 23, 页码 7954-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja9019148
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Linear-hyperbranched, heterobifunctional alpha,omega(n) telechelic block copolymers consisting of a linear poly(ethylene glycol) (PEG) chain and a hyperbranched polyglycerol (PG) block have been prepared. in five steps, using a protected amino-functional initiator. The polyfunctionality omega(n) (OH groups) can be adjusted by the degree of polymerization (DPn) of the polyglycerol block. Subsequent introduction of-a single biotin unit by amidation in alpha-position permitted noncovalent bioconjugation with avidin.
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