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Updated: Sep 11, 2025

Microwave-assisted Functionalization of Polyethylene glycol and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation
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Microwave-assisted Functionalization of Polyethylene glycol and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation

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终端组化学调节可生物降解聚合物的物理性质和生物分子释放

Matthew A Borrelli1,2, Jordan J P Warunek3,4,5, Tarini Ravikumar6

  • 1Department of Chemical and Petroleum Engineering, University of Pittsburgh, PA 15261, USA.

Journal of materials chemistry. B
|August 11, 2025
PubMed
概括

聚乳糖糖酸 (PLGA) 微粒末端组化学显著影响蛋白质的治疗释放. 氨基终结PLGA (PLGA-NH2) 微粒显示更快的降解和增强的药物释放,为长效注射剂提供了新的控制.

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The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
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Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
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The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
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