Synthesis of controlled, high-molecular weight poly(l-glutamic acid) brush polymers.

Synthesis of controlled, high-molecular weight poly(l-glutamic acid) brush polymers.
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可控高相对分子质量聚(L-谷氨酸)刷状聚合物的合成。

DOI:
10.1039/c7bm00339k
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发表时间:
2017-08-22
影响因子:
6.6
通讯作者:
Cheng J
Cheng J
中科院分区:
工程技术2区
文献类型:
--
作者:
Baumgartner R;Kuai D;Cheng J

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报道了高相对分子质量聚(L-谷氨酸)刷状聚合物的合成与表征。采用降冰片烯单体开环歧化聚合和γ-苄基-L-谷氨酸N-羧酸酐开环聚合相结合的方法,合成了高相对分子质量γ-苄基保护的聚(L-谷氨酸)刷状聚合物。用三甲基硅基碘化物控制和完全解除对苯基的保护,得到了相对分子质量高达3.6mda的基于聚(L-谷氨酸)的刷状聚合物,有望用于制备用于药物输送应用的尺寸可控的单分子聚合物纳米药物。制备了喜树碱刷L-谷氨酸结合物,并对其稳定性、药物释放动力学和体外毒性进行了研究。
We report the synthesis and characterization of high-molecular weight poly(L-glutamic acid) based brush polymers. Utilizing a combination of ring-opening metathesis polymerization of norbornene based monomers and ring-opening polymerization of γ-benzyl-L-glutamate N-carboxyanhydride, high-molecular weight γ-benzyl protected poly(L-glutamic acid) brush polymers are synthesized. Controlled and complete deprotection of the benzyl groups using trimethylsilyl iodide resulted in poly(L-glutamic acid) based brush polymers with molecular weights up to 3.6 MDa, which may potentially be used to prepare size-controlled unimolecular polymeric nanomedicine for drug delivery applications. Camptothecin brush poly(L-glutamic acid) conjugates were prepared and their stability, drug release kinetics, and in vitro toxicity were studied.
DOI: 10.1021/ja308620h
发表时间: 2012-11-28
影响因子: 15
作者:
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通讯作者: Deming, Timothy J.
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