相关实验视频

Updated: Jun 14, 2025

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

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

Published on: November 21, 2017

具有光敏度的二氧化-含有寡合物的

Nour Nour Eddine¹, Laurine Meslong¹, Marie Cordier¹

¹ISCR (Institut des Sciences Chimiques de Rennes), Univ Rennes, CNRS, UMR 6226, 35000, Rennes, France.

Chemistry (Weinheim an der Bergstrasse, Germany)

|August 29, 2024

概括

通过一种新的方法合成了新的光响应的二氧化玻尿酸寡合物. 这些材料具有有趣的光物理和光机械特性,适合薄膜应用.

科学领域:

材料科学材料科学材料科学
有机化学有机化学
聚合物化学聚合物化学

背景情况:

光敏材料对于先进的光学和电子设备至关重要.
迪奥克萨博洛干具有独特的化学和光物理性质.
滴乙烯基乙烯是成熟的光色构建块.

研究的目的:

开发一种合成路径,用于光响应的含有二氧化的寡合物.
研究这些新型寡合物的光物理和光机械特性.
评估它们适用于薄膜制造和应用的适用性.

主要方法:

通过转化 (二胺) 基组,合成二氧化的寡聚物.
加入一个二化滴乙烯乙烯光色单元.
评估光物理性质和可加工性,用于螺旋涂层.
使用位移跟踪档案对光机械行为的评估.

主要成果:

成功合成了含有多糖的光响应性寡合物.
可调节的光物理性质的证明.
从合成的寡合物中制备螺旋涂层薄膜的可行性.
在产生的片中观察光机械行为.

结论:

已经建立了一种用于光响应的二氧化博洛干寡合体的新型合成方法.
开发的寡合物具有有前途的光物理和光机械特性.
这些材料适用于用于光响应应用的功能薄膜.

关键词:

氨基酸盐是一种氨基酸盐.迪奥克萨博洛卡尼 (dioxazaborocane) 是一种二氧化.乙烯乙烯二甲基乙烯是什么?寡合体是一种寡合体.这是一种光机械效应.

更多相关视频

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core

Published on: October 24, 2017

Design, Synthesis, and Photochemical Properties of Clickable Caged Compounds

Design, Synthesis, and Photochemical Properties of Clickable Caged Compounds

Published on: October 15, 2019

相关概念视频

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...

Photochemical Electrocyclic Reactions: Stereochemistry

Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation

Cycloaddition Reactions: MO Requirements for Photochemical Activation

Cycloaddition Reactions: MO Requirements for Photochemical Activation

Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.

Radical Chain-Growth Polymerization: Overview

Radical Chain-Growth Polymerization: Overview

Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the reaction proceeds via a free-radical intermediate. The free radical is formed from radical initiators, which spontaneously generate free radicals by homolytic fission. Organic peroxides (such as dibenzoyl peroxide, as shown in Figure 1) or azo compounds are popular radical initiators. A low concentration ratio of radical initiator to monomer is...