Functional Xylose Polymer Platform for Sustainable Plastics

用于可持续塑料的功能性木糖聚合物平台

• 批准号: 1942487
• 金额: --
• 依托单位: University of Bath
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1942487
• 关键词: Functional; Xylose; Polymer; Platform; Sustainable

The project aims to develop the technologies which will enable the utilisation of sugar molecules derived from thebiological and biochemical engineering treatment of biomass, and transform them into a platform of new polymerswith properties relevant to applications. The approach will also incorporate the end-of-life of these new materials,either by studying their degradation under various conditions, or by feeding them back to biological and biochemicalprocesses.We will focus, amongst the large carbohydrate pool, on D-xylose, as it is abundant, comes from waste and non-ediblecrops, and its price ($0.5/kg) is close to petrochemical feedstocks.Furthermore, xylose is easily modified, in particular via ketal functionalisation, and the ability to work with its furanoseor pyranose form offers multiple monomer possibilities.By creating a platform of functional xylose-based polymers, we will also strive to identify a clear structure/propertyrelationship, which will be exploited to deliver polymers with the desired properties, including for application ascommodity plastic materials.Our work programme will include:1) the optimal (few steps, renewable reagents) and scalable (target scale 100g) synthesis of functionalisedmonomers from xylose, including polar cyclic monomers, cyclic and acyclic olefins;2) the utilization of xylose-rich stream obtained from biological and biochemical treatments of selected biomass (e.g.xylans)3) the controlled polymerisation of these monomers using ring-opening polymerisation (including metathesis), acyclicdiene metathesis polymerisation, and reversible deactivation radical polymerisation methods;4) the complete thermal, mechanical and physical characterisation of the synthesised polymers;5) the formulation of a general structure-property relationship for this new polymer platform;6) the exploitation of these material design rules to develop better polymers;7) the processing and further evaluation of selected polymers as c ommodity plastics8) the utilization of the polymers as feedstock for selected biological and biochemical processes, to explorealternative end-of-life options to thermal or hydrolytic degradation.

该项目旨在开发技术，使生物质的生物和生化工程处理产生的糖分子能够利用，并将其转化为具有应用相关特性的新聚合物平台。该方法还将通过研究这些新材料在各种条件下的降解，或通过将它们反馈到生物和生化过程中，来结合这些新材料的生命末期。在大量的碳水化合物库中，我们将重点关注D-木糖，因为它是丰富的，来自废物和非食用作物，以及它的价格此外，木糖容易改性，特别是通过缩酮官能化，并且与其呋喃糖或吡喃糖形式一起工作的能力提供了多种单体可能性。通过创建功能性木糖的平台，基于聚合物，我们还将努力确定一个明确的结构/性能关系，这将被利用来提供具有所需性能的聚合物，包括作为商品塑料材料的应用。我们的工作计划将包括：（步骤少，试剂可再生）和可扩展性（目标规模100 g）从木糖合成官能化单体，包括极性环状单体、环状和非环状烯烃; 2）利用从所选生物质的生物和生化处理获得的富含木糖的流（例如木聚糖）3）使用开环聚合的这些单体的受控聚合（包括复分解）、无环二烯复分解聚合和可逆失活自由基聚合方法;4）合成聚合物的完整热、机械和物理表征; 5）为这种新的聚合物平台制定一般的结构-性能关系;6）利用这些材料设计规则来开发更好的聚合物; 7）加工和进一步评估选定的聚合物作为通用塑料8）利用聚合物作为选定的生物和生物化学过程的原料，探索热降解或水解降解的替代性寿命终止选择。