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3-甲基噻吩在三氟化硼乙醚溶液中氧化聚合得到聚（3-甲基噻吩）（PMeT）.用拉曼光谱在123～458K的温度范围内对该聚合物进行了表征.实验结果表明:PMeT中处于氧化态的链段的热稳定性远远低于处于还原态的链段.在冷冻过程中,还原态链段的构象从一个类线团状态转变成棒状构象,而氧化态链段的构象在冷冻过程中不会发生变化.
3-Methylthiophene was oxidatively polymerized in boron trifluoride etherate to obtain poly (3-methylthiophene) (PMeT) .The polymer was characterized by Raman spectroscopy in the temperature range of 123 ~ 458 K. The experimental results The results show that the thermal stability of PMeT in the oxidized state is much lower than that in the reduced state.In the process of freezing, the conformation of the reduced state changes from a group-like state to a rod-like state, while the oxidation state The conformation of the segment does not change during freezing.