Synthesis and Characterization of Non-Ionic Surfactants Prepared from Furan-2-Methanol Derivatives**

由呋喃-2-甲醇衍生物制备的非离子表面活性剂的合成和表征**

• 批准号: 536596-2018
• 负责人: Duhamel, Jean
• 金额: $ 1.82万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=649731
• 关键词: Synthesis; Characterization; Non; Ionic; Surfactants

This proposal concerns the preparation and properties evaluation of a series of non-ionic surfactants synthesized from derivatives of chloromethylfurfural that will be supplied by Origin Materials and have the general structure R-F-MeOH, where the R-group contains an alkyl chain and F and MeOH stand for furan and methanol, respectively. The precursors for these alkylated furan derivatives can be produced on a large scale from cardboard or wood chips via an innovative catalytic process developed by Origin Materials. The ability to use R-F-MeOH derivatives as precursors to synthesize non-ionic surfactants would lead to new applications for these bio-derived feedstocks. To achieve this, the methanol substituent of R-F-MeOH will be deprotonated to serve as initiator for the anionic polymerization of ethylene oxide and grow a hydrophilic oligo(ethylene oxide) (OEO) segment. Furan-based non-ionic surfactants (fbnios) will be prepared with systematic variations in the length of the alkyl chain in the R-group and of the OEO chain, so as to control their hydrophilic-lipophilic balance (HLB). Each surfactant will be characterized by steady-state and time-resolved fluorescence**spectroscopy to determine its critical micelle concentration (CMC, the surfactant concentration above which micelles are formed) and aggregation number (Nagg, the number of surfactant molecules per micelle). In combination with surface tension measurements, these results will allow the evaluation of the effectiveness of these novel surfactants. Structure-property relationships will be established relating the CMC, Nagg, and surface tension reduction with the HLB of these surfactants.**

该提案涉及由氯甲基糠醛衍生物合成的一系列非离子表面活性剂的制备和性能评价，这些表面活性剂将由Origin Materials提供，具有一般结构R-F-MeOH，其中R基团含有烷基链，F和MeOH分别代表呋喃和甲醇。这些烷基化呋喃衍生物的前体可以通过Origin Materials开发的创新催化工艺从纸板或木片大规模生产。使用R-F-MeOH衍生物作为前体合成非离子表面活性剂的能力将导致这些生物衍生原料的新应用。为了实现这一点，R-F-MeOH的甲醇取代基将被去质子化以用作环氧乙烷的阴离子聚合的引发剂并生长亲水性低聚（环氧乙烷）（OEO）链段。呋喃基非离子表面活性剂（fbnios）将在R-基团中的烷基链和OEO链的长度方面具有系统变化来制备，以便控制它们的亲油-亲油平衡（HLB）。每种表面活性剂将通过稳态和时间分辨荧光 ** 光谱法表征，以确定其临界胶束浓度（CMC，表面活性剂浓度，高于该浓度时形成胶束）和聚集数（Nagg，每个胶束的表面活性剂分子数）。结合表面张力测量，这些结果将允许这些新型表面活性剂的有效性的评估。将建立CMC、Nagg和表面张力降低与这些表面活性剂的HLB的结构-性质关系。**