AM2Net Advanced Macromolecular Materials By Transition Metal Catalysis; Group 2: "Post Metallocene Catalysis"; Functional and segmented copolymers via post-metallocene catalysis

AM2Net 过渡金属催化先进高分子材料；

• 批准号: 5372489
• 负责人: Professor Dr. Rolf Mülhaupt
• 金额: --
• 依托单位: Institut für Makromolekulare Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2002
• 资助国家: 德国
• 起止时间: 2001-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5372489?language=en
• 关键词: AM2Net; Advanced; Macromolecular; Materials; Transition

Novel families of polyolefins and cycloolefin copolymers will be prepared by catalytic copolymerization of olefins, styrene and polar olefins with cyclohexadiene combined with catalytic postpolymerization functionalization. Special emphasis is being placed upon the development of "self-reinforced" polyolefins containing arylene or oligoarylene in the backbone or the side chain. Arylenes are obtained by oxidation of corresponding cyclohexene units of cyclohexadiene copolymers. Various metallocene and other single-site catalysts, including new catalyst systems obtained from the project partners, will be examined in high-throughput experiments with respect to their abilities of cyclohexadiene copolymerization. Mapping of ligand and catalyst systems and on-line monitoring of copolymerization reactions by means of ReactIR will be performed in order to achieve control of olefin/cyclohexadiene copolymerization. Spectroscopic structure analyses will be performed in order to identify basic structure/property correlations and to establisth rapid on-line analysis of the resulting copolymers. The olefin/cyclohexadiene copolymers containing cyclohexene units in the backbone will be modified by means of hydrogenation, oxidation, hydroformylation to produce a variety of new functional polyolefins. Polymer analoguous oxidation will be optimized to prepare novel polyolefins containing rigid arylene and oligoarylene units. Thermal, mechanical, morphological and rheological properties will be investigated with special emphasis being placed upon the role of at self-assembly of oligoarylene segments during melt processing and molecular reinforcement. Functionalized rigid copolymers will be used as blend components of engineering thermoplastics.

新型聚烯烃和环烯烃共聚物系列将通过烯烃、苯乙烯和极性烯烃与环己二烯的催化共聚以及催化后聚合官能化来制备。特别强调的是开发在主链或侧链中含有亚芳基或低聚亚芳基的“自增强”聚烯烃。亚芳基通过氧化环己二烯共聚物的相应环己烯单元获得。各种茂金属和其他单中心催化剂，包括从项目合作伙伴获得的新型催化剂系统，将通过高通量实验检验其环己二烯共聚能力。将进行配体和催化剂体系的测绘以及通过ReactIR在线监测共聚反应，以实现对烯烃/环己二烯共聚的控制。将进行光谱结构分析，以确定基本结构/性能相关性并建立所得共聚物的快速在线分析。主链含有环己烯单元的烯烃/环己二烯共聚物，可通过加氢、氧化、加氢甲酰化等方法进行改性，生产多种新型功能性聚烯烃。将优化聚合物类似氧化以制备含有刚性亚芳基和低聚亚芳基单元的新型聚烯烃。将研究热、机械、形态和流变性能，特别强调低聚亚芳基链段在熔融加工和分子增强过程中自组装的作用。功能化刚性共聚物将用作工程热塑性塑料的共混组分。