Multi-angle laser light scattering (MALLS) detector for triple-detection high-temperature gel permeation chromatography (HTGPC) system

三检测凝胶渗透色谱(GPC)结合多角度激光光散射(MALLS)检测器是研究具有定制链状结构的聚合物合成和表征的重要仪器。集成的MALLS检测器使其具有无与伦比的能力，可以精确测量聚合物的绝对相对分子质量和分布、聚合物线圈的大小和分布以及许多其他重要的聚合物结构特性。为满足叶博士对链式结构控制聚烯烃研究的迫切需要，本建议书要求提供资金用于购买怀亚特微型DAWN购物中心检测器，以建立强大的三检测高温凝胶渗透色谱(HTGPC)系统。叶博士目前在他的实验室中有一台聚合物实验室PL220 HTGPC系统，该系统具有双重浓度和粘度检测器阵列。由于缺乏商场探测器，现有的HTGPC系统的能力和性能受到很大限制。目前合成的聚合物的许多重要性质不能得到完全和/或准确的表征。因此，授予所要求的探测器将极大地提高仪器的能力，并极大地帮助研究计划的成功进展。所要求的设备在劳伦斯大学和安大略省北部地区都是第一次。它的收购对于在劳伦斯大学建立尖端的聚烯烃研究领域至关重要，对于培训和留住安大略省北部地区和加拿大其他地区的高素质聚合物研究人员也很重要。

Triple detection Gel Permeation Chromatography (GPC) incorporating a Multi-Angle Laser Light Scattering (MALLS) detector is an important instrumentation for research on synthesis and characterization of polymers with tailor-designed chain architectures. The incorporated MALLS detector enables the matchless capability to accurately measure the absolute polymer molecular weight and distribution, polymer coil size and distribution, and many other important polymer structural properties. The funds are requested in this proposal to acquire a Wyatt miniDAWN MALLS detector for the establishment of a powerful triple-detection High-Temperature Gel Permeation Chromatography (HTGPC) system for the urgent need in Dr. Ye's research on chain architecture-controlled polyolefins. Dr. Ye currently has in his lab a Polymer Laboratory PL220 HTGPC system with a dual concentration and viscosity detector array. Owing to the lack of a MALLS detector, the capability and performance of the existing HTGPC system is significantly limited. Many important properties of polymers synthesized currently can not be fully and/or accurately characterized. The award of the requested detector will therefore tremendously boost the capability of the instrument and significantly help the successful progress of the research programs. The requested equipment is the first of its kind both at Laurentian University and in the region of Northern Ontario. Its acquisition is critical to the establishment of a cutting-edge polyolefin research field at Laurentian University and is important for the training and retention of high-qualified polymer researchers in the region of Northern Ontario and the rest of Canada.