聚N-乙烯基丁内酰胺的特性粘数-分子量关系,已有许多作者研究过,如表1.但是从一个试样25°±0.02时在水溶液中测得的[η]=19.9毫升/克,用表1中式(3),(4),(5),(6)计算所得分别是(3.19,2.17,4.27,3.08)×10~4,有相当的分歧,作为血浆填充剂的应用,分子量值有重要的意义,因此对这样一种试样进行了超速离心沉降和扩散的研究。 The intrinsic viscosimetry-molecular weight relationship of poly-N-vinylbutyrolactam has been studied by many authors as shown in Table 1. However, [η] measured in aqueous solution at 25 ° ± 0.02 from one sample was 19.9 ml / G, and the calculated results obtained by using the formulas (3), (4), (5) and (6) in Table 1 are (3.19,2.17,4.27,3.08) × 10 ~ 4, , Molecular weight has important significance, so a sample of such ultracentrifugation sedimentation and diffusion studies.