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Gel Permeation Chromatography for Functional Materials Characterization

用于功能材料表征的凝胶渗透色谱法

基本信息

批准号：
RTI-2018-00079
负责人：
Schafer, Laurel
金额：
$ 10.86万
依托单位：
University of British Columbia
依托单位国家：
加拿大
项目类别：
Research Tools and Instruments
财政年份：
2017
资助国家：
加拿大
起止时间：
2017-01-01 至 2018-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=642243
关键词：
Gel Permeation Chromatography Functional Materials

项目摘要

New polymeric materials are required to make advanced plastics, coatings and composite materials for a broad range of applications ranging from new low energy light sources to new adhesives that will allow for paintable plastics. These next generation polymeric materials require the incorporation of functionality that can respond and interact with their environment, eg. electrical stimulus to emit light or form tight binding interactions with metals or non-stick polymers such as Teflon. Thus, novel chemistry and polymerization syntheses must be developed to make such functional materials. Meanwhile, the experimental polymers resulting from these efforts must be measured and characterized using a variety of research techniques. Gel permeation chromatography (GPC) is the single most common method for polymer characterization, and operates by separating samples of polymer chains by their size in solution. Detectors then determine the amount of material eluting through the GPC column as a function of the time it takes for a sample to pass through. Thus, short chain polymers elute more quickly than long chain polymers. From this time information as well as detection using light scattering we can learn about how the shape of polymers in solution. This information helps us to predict polymer properties, such as strength and toughness, and performance, such as how the polymers can be processed. All of these features of the polymer must be understood before commercial products can be made with these next generation polymers/adhesives/plastics.

需要新的聚合物材料来制造先进的塑料、涂料和复合材料，用于从新的低能量光源到允许可涂漆塑料的新粘合剂的广泛应用。这些下一代聚合物材料需要结合能够响应并与其环境相互作用的功能，例如。电刺激以发射光或与金属或不粘聚合物如特氟隆形成紧密结合相互作用。因此，必须开发新的化学和聚合合成来制造这样的功能材料。与此同时，从这些努力中产生的实验聚合物必须使用各种研究技术进行测量和表征。凝胶渗透色谱法（GPC）是用于聚合物表征的单一最常用的方法，并且通过根据聚合物链在溶液中的尺寸分离聚合物链的样品来操作。然后检测器确定通过GPC柱洗脱的材料的量作为样品通过所花费的时间的函数。因此，短链聚合物比长链聚合物更快地聚合。从这个时间信息以及使用光散射的检测，我们可以了解聚合物在溶液中的形状。这些信息可以帮助我们预测聚合物的性质，如强度和韧性，以及性能，如聚合物的加工方式。在使用这些下一代聚合物/粘合剂/塑料制造商业产品之前，必须了解聚合物的所有这些特征。