摘要
建立了测定ＧＡＰ分子量及分子量分布的ＧＰＣ法。该法应用ＬＣ—６Ａ高效波相色谱仪及示差折光检测器，以ＴＨＦ为溶剂和淋洗剂。色谱柱组由ＨＳＧ—２０、ＨＲ─４Ｅ和μ１０５Ａ°三根ＧＰＣ柱组成，采用多点宽分布标样法标定柱系。所用标样系由宽分布ＧＡＰ原样经沉淀分级法制备，标样数均分子量用ＶＰＯ法测定。
gel permeation chromatography (GPC) method is established to determine molecular weight and molecular weight distribution of glycidyl azide polymer (GAP). The method is carried out with LC - 6A liquid chromatograph and differential refractometer as detector, using THF as a solvent and mobile phase.The GPC columns consist of HSG-20. HR-4E andu105A°, and the columns are calibrated with multipoint wide distribution standards method. The standards used are prepared from wide distribution original GAP sample by precipitation fractional separation. The number average molecular weight (Mn) of the standards are measured by vapour pressure osmometer (VPO).
出处
《固体火箭技术》
EI
CAS
CSCD
1996年第1期63-68,共6页
Journal of Solid Rocket Technology
关键词
分子量
质量分布
GAP
粘合剂
固体推进剂
Molecular weight Mass distribution Gel permeation chromatography Mass measurement
