Asymmetric copolymers: Neither block nor random

不对称共聚物：既不是嵌段共聚物，也不是无规共聚物

基本信息

批准号：
286983008
负责人：
Dr. Carlos Antioco Guerrero Sanchez, Ph.D.
金额：
--
依托单位：
Laboratoire des Intéractions Moléculaires et Réactivité Chimique et Photochimique (IMRCP) UMR 5623
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2015
资助国家：
德国
起止时间：
2014-12-31 至 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/286983008?language=en
关键词：
Asymmetric copolymers Neither block nor

项目摘要

The goal of the ASYMCOPO project is to develop new materials that mimic the useful properties of gradient copolymers, but which do not require complex synthetic procedures for their preparation. Gradient copolymers, whose composition varies continuously as a function of chain length, are an intriguing class of materials with many potential applications, including as shock- and noise-absorbers and as interfacial stabilizers. However, the preparation of a polymer with a pre-defined gradient of composition requires a semi-continuous process with careful control over monomer addition and constant feedback in order to regulate the composition at each stage of the polymerization. It has recently been noted that the very idea of a gradient copolymer is something of a contradiction in terms: while the average composition of all the chains of a polymer may vary smoothly from one end of the chain to the other, each individual chain is composed of discrete monomer units, and at any point in the chain the composition must take one of only two possible values. Thus, polymers which, on average, exhibit a composition gradient contain a broad distribution of structures. Furthermore, it is impossible to reconstruct the composition gradient of the entire polymer from a single polymer chain. It is thus natural to ask, what is the defining structural feature of a gradient copolymer? And can these properties be mimicked using structures that are easier to prepare, using well-understood batch polymerization processes? In the ASYMCOPO project we aim to answer this question by introducing the concept of asymmetric copolymers: polymers that are intermediate in structure between block and random copolymers. We have developed a framework for the classification of this class of polymers, centered on the concept of a moment of asymmetry, which we will use to guide our research in first synthesizing, then exploring the properties of this new class of materials. In particular, we seek to define structures consisting of 2, 3, or 4 random copolymer segments which mimic the useful properties of gradient copolymers, but are substantially easier to synthesize. This project requires the preparation of an extensive library of copolymers of different structures, and hence necessitates the involvement of a laboratory with expertise in high-throughput polymer synthesis and characterization. The Institute for Organic and Macromolecular Chemistry (IOMC), in Jena, Germany, is the European leading research group in this domain. In parallel, synthesis of well-defined gradient copolymers requires careful control of polymerization conditions, employing the expertise of the Laboratoire des Intéractions Moléculaires et Réactivité Chimique et Photochimique (IMRCP) laboratory of Toulouse, France, in polymerization kinetics, polymer synthesis and characterization.

Asymcopo项目的目的是材料梯度共聚物合成程序的有用特性，其梯度共聚物的组成量是与链长G类的函数，包括许多潜在应用，包括震惊和Nosorbers和前经稳定器。在另一个链中，每个链由离散的单体单位组成，在CHE链中的任何点，组成只能仅采用可能的值，因此，聚合物平均具有组成梯度所包含的聚合物。因此，结构的分布很自然，梯度共聚物的定义特征是什么？引入不对称共聚物的概念：聚合物是介导的聚合物，用于分类不对称的时刻概念，然后探索材料类的特性，我们试图定义由2、3，3，3，3，3，3，3，3，3，3。或模仿梯度共聚物的有用特性的4个随机共聚物段，他的项目需要具有高刺激性聚合物合成和特征的不同结构保守党的共聚物库。该领域的领先研究小组在平行的合成中，需要控制聚合条件。。

项目成果

期刊论文数量（5）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Asymmetric Copolymers: Synthesis, Properties, and Applications of Gradient and Other Partially Segregated Copolymers.

DOI：
10.1002/marc.201800357
发表时间：
2018-09
期刊：
Macromolecular rapid communications
影响因子：
4.6
作者：
Junliang Zhang;Bárbara Farías-Mancilla;M. Destarac;U. Schubert;Daniel J. Keddie;C. Guerrero-Sánchez
通讯作者：
Junliang Zhang;Bárbara Farías-Mancilla;M. Destarac;U. Schubert;Daniel J. Keddie;C. Guerrero-Sánchez

Kinetic and Copolymer Composition Investigations of the Free Radical Copolymerization of 1-Octene with Glycidyl Methacrylate

DOI：
10.1002/macp.201800084
发表时间：
2018-06
期刊：
Macromolecular Chemistry and Physics
影响因子：
2.5
作者：
M. Rosales-Guzmán;O. Pérez‐Camacho;R. Torres-Lubian;S. Harrisson;U. Schubert;C. Guerrero‐Sanchez;E. Saldívar‐Guerra
通讯作者：
M. Rosales-Guzmán;O. Pérez‐Camacho;R. Torres-Lubian;S. Harrisson;U. Schubert;C. Guerrero‐Sanchez;E. Saldívar‐Guerra

High-Throughput Synthesis of Polymers

聚合物的高通量合成