Continuation of the work on polyolefins prepared by metathesis

通过催化剂设计控制聚合物结构的能力是聚烯烃成功背后的主要驱动力。因此，主要由乙烯和丙烯制成的聚合物现在可以用于从超薄垃圾袋和产品袋到汽车保险杠的广泛应用中，并且它们可以取代在防弹夹克或高模量纤维中使用的特种聚合物。对结构的精确控制是实现高度期望的流变和机械性能的关键。该提案是2017年5月至11月期间执行的Engage提案的后续提案。我们希望使用非常特定的技术制备模型聚烯烃，称为复分解。我们在Engage提案中计划的最初方案只取得了部分成功，我们需要更多的时间来完成合成，并将大约10克模型聚合物送到我们的工业合作伙伴NOVA Chemicals。他们将在各种机械和流变试验中评估聚合物的性能，并将其与商业产品进行比较。如果成功的话，可以设想Nova化学公司和舍布鲁克大学的科学家之间进行更长时间的合作，通过经济上可行的路线制备这种非凡的产品。

The ability to control polymer architecture via catalyst design has been a major driving force behind the successof polyolefins. Consequently, polymers made principally of ethylene and propylene now can be used in a broadrange of applications, from ultra-thin trash and produce bags, to car bumpers and they can supersede the use ofspecialty polymers in bullet proof jackets or in high modulus fibers. Precise control over architecture is a key toachieve highly desired rheological and mechanical properties.This proposal is the follow-up of an Engage proposal which was executed between May and November 2017.We want to prepare a model polyolefin using a very specific technique, called metathesis. The initial schemethat we had planned in the Engage proposal was only partly successful, and we need more time to finish thesynthesis and to send approximately 10 g of the model polymer to our industrial partner, NOVA Chemicals.They will evaluate the performance of the polymer in various mechanical and rheological assays, and compareit to commercial products. If successful, it might be envisaged that a longer collaboration be engaged betweenNova Chemicals and the scientists of Université de Sherbrooke to prepare such remarkable products byecononomically viable routes.