Purchase of an In-Situ Infrared Spectrometer, Gel Permeation Chromatograph, and Melt Rheometer Ensemble

有了化学研究仪器和设施（CRIF）计划的这一奖项，弗吉尼亚理工学院和州立大学的化学系将购买原位红外光谱仪、凝胶渗透色谱仪和熔体流变仪。 该仪器将促进以下领域的研究：a）新型活性链增长聚合的研究; B）熔融相逐步增长聚合; c）功能性低聚物交联研究; d）从烯酮二聚体合成聚酮化合物; e）用于烯醇化物基C-C形成反应的双功能催化剂的开发; f）活性中间体的检测; g）可逆凝胶的动力学; h）酚醛-环氧材料的熔融转化; i）用于聚合物基质复合材料的阻燃酚醛基质树脂;和j）聚烯烃中支化的表征。 红外光谱仪、凝胶渗透色谱仪（GPC）和熔体流变仪等仪器组合是聚合物科学家急需的分析仪器。 它们允许分析大分子，这些大分子往往不溶于或仅溶于非常有毒的溶剂。 因此，光谱仪的现场能力是关键。 此外，GPC非常适合处理有毒溶剂和高温分析。

With this award from the Chemistry Research Instrumentation and Facilities (CRIF) Program, the Department of Chemistry at Virginia Polytechnic Institute and State University will purchase an In-Situ Infrared Spectrometer, Gel Permeation Chromatograph, and Melt rheometer Ensemble. This instrumentation will facilitate research in the following areas: a) studies of novel living chain growth polymerization; b) melt phase step-growth polymerization; c) functional oligomer crosslinking studies d) synthesis of polyketides from ketene dimers; e) development of bifunctional catalysts for enolate-based C-C forming reactions; f) detection of reactive intermediates; g) dynamics of reversible gels; h) melt conversion of phenolic-epoxy materials; i) flame retardant phenolic matrix resins for polymer matrix composites; and j) characterization of branching in polyolefins. This ensemble of instruments, infrared spectrometer, gel permeation chromatograph (GPC), and melt rheometer, are critically needed analytical instruments for polymer scientists. They allow the analysis of macromolecules, which tend to be insoluble or soluble only in very toxic solvents. Thus the in-situ capabilities of the spectrometer are key. In addition, the GPC is well-suited to handle toxic solvents and high temperature analysis.