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Updated: May 12, 2025

Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes
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Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes

Published on: November 21, 2017

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可循环利用的,生物基聚碳酸和聚合物由纳夫托基胺和复合物复合而成

Federica Tufano1, Maria Vittoria Galotto1, Alfredo D'Elia2

  • 1University of Salerno: Universita degli Studi di Salerno, Chimica e Biologia "Adolfo Zambelli", ITALY.

Chemistry (Weinheim an der Bergstrasse, Germany)
|May 10, 2025
PubMed
概括

新的和复合物催化循环和碳酸盐的环开聚合. 复合物显示高活性,使得共聚合物合成和材料可通过脱聚合回收.

关键词:
二氧化碳的固定方法可再生资源 可再生资源化学回收 化学回收 化学回收聚乙烯的多种类型聚trimethylene碳酸盐的使用情况

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Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

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Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones10:17

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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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Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
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Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
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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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