红外光谱法测定乙丙橡胶中丙烯的含量  

Determination of the Proportion of Propylene Units in Ethylene—Propylene Copolymers With Infrared Method

作　　者：叶煊[1] 刘桂华[1] 李延兵[1] 刘桂香[2] 徐强[3] 

机构地区：[1]中国医科大学普通化学教研室 [2]沈阳大学农业业分校 [3]中国医科大学法医化学教研室

出　　处：《沈阳大学学报》1994年第4期20-22,共3页

摘　　要：乙丙胶经热压膜后测定8.65um和13.85um处的吸光度。Ln^(A8.65)/_(A13.85)值与丙烯含量C_3成直线关系,回归方程C_3％=54.43+16.45ln^(A8.65)/_(13.85)。未知样品,A,C,D,F丙烯克分百分数分别为41.0,53.1,40.4和59.7。The pressed of films of Ethylene--Propylene copolymers are measured for their infrared absorbance ratios at 8.65/13. 85 um (1156/722cm^1, The value of in (A_(8.65)/ A_(13.85))is directly proportional to mole percent of propylene unit (C_3) in polymer, The calibration obtained from standard polymers is C_％= 54.43+16.45ln (A_(8.65)/A_(13.85)), The mole perent values of propylene units in samples A, C, D, F are 41.0％, 53.1％40.4％, and 59.7％respectively.

关 键 词：乙丙橡胶 红外光谱 

分 类 号：O657.3[理学—分析化学]