用FTIR方法研究了甲基丙烯酸甲酯(MMA)和异戊二烯(IP)不同投料比共聚物的红外光谱。以一级马尔可夫反应,近似计算了MMA二单元组链节出现的几率P_(MM),三单元组出现的几率P_(IMI)和P_(MMM),以及MMA单元序列长度η_M。测量了不同共聚物C=O伸展振动带的频 The FTIR method was used to study the IR spectra of copolymers with different charge ratios of methyl methacrylate (MMA) and isoprene (IP). In a first-order Markov reaction, the probability of occurrence of MMA diad chains P_ (MM), the probability of triad occurrence P_ (IMI) and P_ (MMM), and the length of MMA unit sequence η_M are calculated approximately. The frequencies of the C = O stretching vibration bands of different copolymers were measured