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

通过烯烃、苯乙烯和极性烯烃与环己二烯的催化共聚结合催化后聚合官能化，将制备新型聚烯烃和环烯烃共聚物。特别强调的是在主链或侧链中含有亚芳基或低聚亚芳基的“自增强”聚烯烃的开发。通过氧化环己二烯共聚物的相应环己烯单元获得亚芳基。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催化剂系统，将在高通量实验中检查其环己二烯共聚的能力。配体和催化剂系统的映射和共聚反应的在线监测，通过反应红外将进行，以实现控制烯烃/环己二烯共聚。将进行光谱结构分析，以确定基本的结构/性能相关性，并建立快速在线分析所得共聚物。以环己烯为骨架的烯烃/环己二烯共聚物可通过加氢、氧化、加氢改性等方法制备各种新型功能聚烯烃。聚合物模拟氧化将被优化以制备含刚性亚芳基和低聚亚芳基单元的新型聚烯烃。热，机械，形态和流变性能将进行研究，特别强调被放置在熔融加工和分子增强过程中的作用的低聚亚芳基链段的自组装。官能化刚性共聚物将用作工程热塑性塑料的共混组分。

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.