通过温度梯度相互作用色谱法对多分散聚氯乙烯进行表征
Characterization of polydisperse poly(vinyl chloride) by temperature gradient interaction chromatography.
作者信息
Park Soojin, Ko Changhee, Choi Heungyeal, Kwon Kyoon, Chang Taihyun
机构信息
Department of Chemistry and Polymer Research Institute, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea.
出版信息
J Chromatogr A. 2006 Aug 4;1123(1):22-5. doi: 10.1016/j.chroma.2006.04.095.
Temperature gradient interaction chromatography (TGIC) was employed to fractionate a commodity polymer, poly(vinyl chloride) (PVC) with wide molecular weight distribution (MWD). The TGIC fractionation was carried out with C18 bonded silica and dimethylformamide (DMF) as the stationary and mobile phase, respectively. TGIC exhibited a high resolution to fractionate the PVC into the fractions with a narrow MWD comparable to the anionically polymerized standards. In combination with light scattering detection, TGIC is able to characterize the polymers with wide MWD and shows a good potential to be further developed as a new preparative fractionation method of synthetic polymers.
采用温度梯度相互作用色谱法（TGIC）对一种商品聚合物聚氯乙烯（PVC）进行分级分离，该聚合物具有较宽的分子量分布（MWD）。TGIC分级分离分别以C18键合硅胶和二甲基甲酰胺（DMF）作为固定相和流动相。TGIC表现出高分辨率，能够将PVC分级为具有窄MWD的级分，可与阴离子聚合标准品相媲美。结合光散射检测，TGIC能够表征具有宽MWD的聚合物，并且显示出作为合成聚合物新的制备分级方法进一步发展的良好潜力。
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