单电子转移活性自由基聚合制备星形聚合物及性能研究

项目名称： 单电子转移活性自由基聚合制备星形聚合物及性能研究

项目编号： No.51474068

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 矿业工程

项目作者： 丁伟

作者单位： 东北石油大学

项目金额： 81万元

中文摘要： 单电子转移活性自由基聚合（SET-LRP），一种代替原子转移自由基聚合（ATRP）的方法，其催化过程与ATRP完全不同，具有过渡金属用量少，反应时间短，并可在室温或低于室温下操作等优点，是活性自由基聚合的最新研究成果。与ATRP方法一样，该法合成的聚合物平均分子量及其分布等可控，链长更均匀或可消减链中薄弱环节等。星形聚合物是由线性高分子链连接于一中心核而形成的星形大分子，与传统的线性高分子相比，三维的星状高分子具有高溶解度、低粘滞性和非晶化等特点。通过文献检索，发现迄今为止，国内外有关星形水溶性聚合物的SET-LRP的研究报道尚未见到。本课题通过研究适合丙烯酰胺类单体聚合的催化-引发体系，进而确定星形水溶性聚合物合成的聚合反应工艺，并研究目标产物的性能，对于拓展单电子转移活性自由基聚合法的应用领域具有重要的科学意义。

中文关键词： 单电子转移活性自由基聚合；油田化学；星形聚合物；水溶性聚合物；分子量分布

英文摘要： As a polymerization method replacing atom transfer radical polymerization(ATRP), single electron transfer living radical polymerization(SET-LRP), which is the latest research result for living radical polymerization, is entirely different from ATRP in the catalytic process and has many advantages such as little dosage of transition metal, short reaction time, being operated at (or below) room temperature, and so on. Similar to ATRP, the average molecular weight and molecular weight distribution of polymers synthesized by SET-LRP can be controlled, the length of polymer chain is more homogeneous and the weak link of which may be subtracted. Star polymers are comprised of multiple arms or branches radiating from a central point or core and have been of huge scientific interest since they were first prepared sixty years ago, as a result of their unique physical properties. Star polymers are not just an academic curiosity, but are currently employed or under investigation in a wide range of industries and commercial materials ranging from engine oils and coating technologies to contact lenses and biomedical devices. Although there are many different types of star polymers and methods for their synthesis, recent advances in the field of controlled radical polymerisation have enabled the facile production of complex star polymer architectures from a large range of monomer families, without the requirement of highly stringent reaction conditions. By document retrieval, it was found that, up to now, the research about SET-LRP to synthesis water-soluble star polymer has not been reported publicly. In this topic, acrylamide-based monomers by SET-LRP will be researched. Meanwhile, the polymerization technology will be confirmed and the properties of target products will be researched. The work has great significance in the academic for the development of SET-LRP and application field of ionic liquid.

英文关键词： single;oilfield chemistry;star polymers;water-soluble polymers;molecular weight distribution