Block and graft copolymers based on biobased polylimonenecarbonate with promising material properties

如果不是从重要的原材料中获得，生物基聚合物是特别可持续的。其中一种聚合物是新开发的聚碳酸柠檬烯（PLimC），简称PLimC，由金属络合物催化氧化柠檬烯与CO2共聚，将柠檬烯（从橙壳中得到）环氧化而得。该PLimC具有良好的化学和物理性能。在本项目的背景下，将研究嵌段共聚物和接枝共聚物的新合成方法，一方面通过复杂的聚合物结构显着扩展性能轮廓，另一方面通过相介质使PLimC也可用于与经典聚合物的共混物，以提高其可持续性。为了这些共混物的成功应用，上述嵌段共聚物和接枝共聚物将作为相介质进行研究。目的是通过控制共混物的形貌来达到至少令人满意的机械性能。本文将系统地研究PLimC的嵌段共聚物和接枝共聚物在溶液和固体中的形态结构，以及它们的流变学和力学性能。在初步工作的范围内，我们已经在PLimC嵌段共聚物的相形态方面取得了非常有趣，有时甚至令人惊讶的结果。这些结果有望导致对生物基PLimC作为一种新物质类别的进一步工作的认识显著增加。我们期望这个项目的结果将使PLimC成为一种新型的生物基材料。

Biobased polymers are particularly sustainable if they are not obtained from vital raw materials. One such polymer is the newly developed poly(limonene carbonate), PLimC for short, which can be obtained after epoxidation of limonene (obtained from organge shells) by metal complex-catalyzed copolymerization of limonene oxide with CO2. This PLimC is characterized by a promising chemical and physical property profile. In the context of this project, novel synthesis approaches to block and graft copolymers will be investigated in order to significantly extend the property profile by complex polymer structures on the one hand and to make the PLimC available by phase mediators also for blends with classical polymers on the other hand in order to improve their sustainability. For the successful application of these blends, the above-mentioned block and graft copolymers will be investigated as phase mediators. The aim is to achieve at least satisfactory mechanical properties by controlling the blend morphology. The block and graft copolymers of PLimC will be systematically investigated with respect to their morphological structure in solution and in the solid state as well as their rheological and mechanical properties. Within the scope of preliminary work, we have already achieved extremely interesting and sometimes surprising results with regard to the phase morphology of PLimC block copolymers. These results are expected to lead to a significant increase in knowledge about the biobased PLimC as a new substance class for further work. We expect that the results of this project will establish PLimC as a novel biobased material.