Monomers and Functional Biopolymers from Renewable Lipid Resources

来自可再生脂质资源的单体和功能性生物聚合物

• 批准号: RGPIN-2021-04017
• 负责人: Ullah, Aman
• 金额: $ 2.84万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=743374
• 关键词: Monomers; Functional; Biopolymers; Renewable; Lipid

Modern life relies on polymers which are used in wide range of industrial applications including packaging, automotive, construction, sporting, medicine, diagnostics and electronic. The monomers for synthesis of these polymers are primarily sourced from petroleum. Due to concerns over the sustainability of petroleum and the increasing anthropogenic emissions of greenhouse gases (GHG), the conversion of renewable feedstocks into monomers and biopolymers is highly desirable. Therefore, the conversion of renewable fats/oils into monomers using olefin metathesis chemistry has gained interest. My research group at the University of Alberta is developing biobased monomers and polymers from renewable lipid resources using metathesis approach. Recently, with 3 patents awarded, my laboratory developed a solvent free microwave assisted metathesis process using homogeneous catalysis to convert renewable lipids into monomers and subsequent biopolymers. Based on these finding, a new spin off biorefinery has been incorporated. However, to overcome the critical technical barriers such as high catalyst cost, moisture sensitivity, and deactivation of catalyst leading to metal contamination of metathesis products, the development of recyclable, reusable, moisture stable and cost effective heterogeneous catalysis is required for large scale transition to lipid biorefining. In contrast to the well-defined homogeneous catalysis, the progress on heterogeneous metathesis catalysis of renewables has been limited due to the challenges in effective immobilization to maintain catalytic activity and poor understanding of the process of the catalyst deactivation in renewable feedstocks. In this DG, we will focus on the development of moisture stable, recyclable and reusable polymer immobilized homogeneous and nano-supported heterogeneous catalysts for microwave-assisted metathesis of renewable lipidic feedstocks. Another goal of the research will be to prepare renewable polycarbonates using carbon dioxide (CO2) and internal olefinic monomers produced from metathesized lipids. The proposed research program will contribute to fundamental knowledge discovery in the areas of design and synthesis of heterogeneous supports, catalysts immobilizations, catalyst recycling in lipid conversions and biopolymers synthesis using produced monomers and CO2. Research in these areas is highly multidisciplinary and will lead to advances in green catalysis techniques for conversion of renewable resources into monomers and polymeric materials. The research will reduce our dependency on fossil fuels, reduce GHG emissions and facilitate the transition to a bioeconomy. The anticipated output of this proposed research would be development of economically viable heterogeneous catalytic processes which can lead to rapid potential commercialization. The proposed research program will provide a unique environment towards the training of highly qualified personnel

现代生活依赖于聚合物，这些聚合物广泛应用于包装、汽车、建筑、体育、医学、诊断和电子等工业领域。用于合成这些聚合物的单体主要来自石油。由于对石油可持续性的担忧以及人为温室气体（GHG）排放量的增加，将可再生原料转化为单体和生物聚合物是非常可取的。因此，利用烯烃复分解化学将可再生脂肪/油转化为单体引起了人们的兴趣。我在阿尔伯塔大学的研究小组正在使用复分解方法从可再生脂质资源中开发生物基单体和聚合物。最近，我的实验室获得了 3 项专利，开发了一种无溶剂微波辅助复分解工艺，利用均相催化将可再生脂质转化为单体和随后的生物聚合物。基于这些发现，一个新的分拆生物精炼厂已经成立。然而，为了克服催化剂成本高、湿度敏感性以及催化剂失活导致复分解产物金属污染等关键技术障碍，需要开发可回收、可重复使用、湿度稳定且具有成本效益的多相催化，以大规模过渡到脂质生物精炼。与明确的均相催化相比，由于有效固定以维持催化活性的挑战以及对可再生原料中催化剂失活过程的了解不足，可再生能源的多相复分解催化的进展受到限制。在这个总目标中，我们将重点开发用于微波辅助可再生脂质原料复分解的水分稳定、可回收和可重复使用的聚合物固定均相和纳米支撑的非均相催化剂。该研究的另一个目标是利用二氧化碳（CO2）和由复分解脂质产生的内烯单体制备可再生聚碳酸酯。 拟议的研究计划将有助于多相载体的设计和合成、催化剂固定、脂质转化中的催化剂回收以及使用产生的单体和二氧化碳合成生物聚合物等领域的基础知识发现。这些领域的研究是高度多学科的，将推动将可再生资源转化为单体和聚合材料的绿色催化技术的进步。该研究将减少我们对化石燃料的依赖，减少温室气体排放并促进向生物经济的过渡。这项研究的预期成果将是开发经济上可行的多相催化工艺，从而实现快速的潜在商业化。拟议的研究计划将为培养高素质人才提供独特的环境