Renier M, Wu Y K, Anderson J M, Hiltner A, Lodoen G A, Payet C R
Department of Macromolecular Science, Case Western Reserve University, Cleveland, OH 44106.
J Biomater Sci Polym Ed. 1994;5(6):511-29. doi: 10.1163/156856294x00185.
Methanol extracts of four poly(etherurethane urea) (PEUU) materials were analyzed using Gel Permeation Chromatography (GPC). The additives in the materials were Santowhite powder at 1 wt% and Methacrol 2138 F at 5 wt% loading levels. One-to-two wt% of the original PEUU films was extractable with methanol. The extractables consisted of a low molecular weight (Mw) PEUU polymer, an MDI-rich oligomer, the additives Santowhite (SW) powder and Methacrol 2138 F, and aniline. The low Mw PEUU polymer had a Mw of 12,000 relative to polystyrene, and the MDI-rich oligomer had a Mw of 1000 relative to polystyrene. Quantitation of all extracted species was achieved using GPC; the use of dual-detectors on the GPC made it possible to determine the soft-to-hard composition of the PEUU extracts as a function of molecular weight.
使用凝胶渗透色谱法（GPC）对四种聚醚聚氨酯脲（PEUU）材料的甲醇提取物进行了分析。材料中的添加剂为含量1 wt%的Santowhite粉末和含量5 wt%的Methacrol 2138 F。原始PEUU薄膜的1 - 2 wt%可被甲醇萃取。可萃取物包括低分子量（Mw）的PEUU聚合物、富含MDI的低聚物、添加剂Santowhite（SW）粉末和Methacrol 2138 F以及苯胺。相对于聚苯乙烯，低Mw的PEUU聚合物的Mw为12,000，富含MDI的低聚物的Mw相对于聚苯乙烯为1000。使用GPC对所有萃取物进行了定量；GPC上的双检测器使得能够确定PEUU提取物的软质与硬质成分随分子量的变化情况。
