GOALI: Understanding Oxide-Polymer Interfaces to Enable Green Coating Technology

非技术描述：宾夕法尼亚州立大学(PSU)的研究人员将与两位行业领导者Rohm&amp；Haas和Johns Manville合作，在分子水平上发展对玻璃/聚合物相互作用的基本理解。这将使危险更小、化学更友好的聚合物的开发成为可能，这些聚合物具有改变整个行业的能力。这项研究将研究有机探针分子和聚合物组分与具有科学意义和技术意义的多组分氧化物表面的相互作用。这些材料及其表面在几种能源、显示和生物技术中都很重要。具体地说，这项研究将重点放在含有铝、硅和硼氧化物的无碱玻璃上，因为这些材料的表面很容易通过化学成分的变化进行改性，但可以通过环保的水性聚合物(例如粘合剂和粘结剂)进行改性。在材料的合成和加工得到良好控制之后，将使用多种技术相结合的方法进行表征，这些技术将探索表面反应中心的结构以及表面中心与探针分子相互作用的能量。PSU的教职员工和行业参与者将定期会面，包括教职员工延长对工业研究中心的访问。这项研究还将涉及两名研究生和两名本科生在PSU两名教职员工的实验室中合作。除了在科学文章中报告研究结果外，该项目中获得的所有数据都将上传到化学学术研究人员的门户网站ChemXSeer。技术细节：从简单氧化物材料获得的物理和化学知识经常应用于多组分氧化物，尽管人们普遍认为在较复杂体系的表面存在独特的反应位置和原子/分子尺度的不均一性。我们将通过分析无碱铝硼硅酸盐凝胶和玻璃纤维之间的化学相互作用来研究多组分表面的复杂性，以及由此导致的聚合物与这些材料表面结合的影响。将结合反相色谱(IGC)和固体核磁共振(NMR)来探索与有机小分子和聚合物前体的相互作用。通过与两个工业团队的密切合作，一个来自玻璃公司，另一个来自聚合物涂层制造商，拟议的研究旨在带来材料开发的范式转变，这些材料依赖于对聚合物/氧化物界面的了解。结果将提高性能，降低对环境和健康的影响，和/或减少新材料开发的时间和成本。参与这项研究的学生将认识到基础研究在产品开发、绿色化学和制造方面的价值。氧化物表面和聚合物吸附物的IGC和核磁共振表征的结果将被扩展，以便将这项工作转化为工业实验室。与此同时，这项工作具有足够的基础，通过在公开文献中和通过网络启用的途径快速有效地传播，影响氧化物/聚合物界面系统的其他领域和其他应用。

NON-TECHNICAL DESCRIPTION: Researchers at the Pennsylvania State University (PSU) will join in collaboration with two industry leaders, Rohm & Haas and Johns Manville, to develop a fundamental understanding of glass/polymer interactions at the molecular level. This will enable development of less hazardous and more chemically benign polymers that have the capability of transforming an entire industry. This research will study the interactions of organic probe molecules and polymer components with scientifically significant and technologically important multicomponent oxide surfaces. These materials and their surfaces are important in several energy, display, and bio-technologies. Specifically, the research will focus on alkali-free glasses containing aluminum, silicon, and boron oxides, as these materials present surfaces that are easily modified through changes in chemical composition but are subject to modification by environmentally friendly water-borne polymers (e.g., adhesives and binders). Well-controlled synthesis and processing of materials will be followed by characterization with a combination of techniques that will explore the structure of reactive sites on the surfaces as well as the energies of interactions of the surface sites with probe molecules. The PSU faculty and industry participants will meet with each other on a regular basis, including extended visits by faculty to industrial research centers. The research will also involve two graduate students and two undergraduate students working in collaboration across the labs of the two PSU faculty members. In addition to reporting research results in scientific articles, all data acquired in this project will be uploaded to ChemXSeer, a portal for academic researchers in chemistry. TECHNICAL DETAILS: Physical and chemical knowledge obtained from simple oxide materials is often applied to multicomponent oxides even though it is widely recognized that unique reaction sites and atomic/molecular scale heterogeneity exist at the surface of the more complex systems. The increased complexity of multicomponent surfaces, and the resulting implications for polymer binding to the surfaces of these materials, will be studied through analysis of chemical interactions with alkali-free aluminoborosilicate gels and glass fibers. Interactions with small organic molecules and polymer precursors will be probed using a combination of inverse gas chromatography (IGC) and solid-state nuclear magnetic resonance (NMR). By collaborating closely with two industrial teams, one from a glass company and the other from a manufacturer of polymer coatings, the proposed studies are intended to bring about a paradigm shift in the development of materials that rely upon an understanding of polymer/oxide interfaces. The results will enable enhanced performance, lower the environmental and health impact, and/or reduce the time and cost of new materials development. Students involved in this research will gain an appreciation for the value of fundamental research in product development, green chemistry, and manufacturing. Results from the IGC and NMR characterization of oxide surfaces and polymer adsorbates will be extended to allow translation of this work to industrial labs. At the same time, the work is sufficiently fundamental to impact other fields and other applications of oxide/polymer interface systems through its rapid and effective dissemination in the open literature and via cyber-enabled routes.