The mechanochromism of two phenothiazine-based benzoxazole derivates (PVB and BPVB) was compared. The ground film of PVB without bromine atoms can self-cure within 15 min at room temperature, while the ground film for BPVB showed no changes for at least 2 weeks.
两种基于苯并噻唑的苯并噻唑衍生物(PVB和BPVB)的机械致色性进行了比较。不含溴原子的PVB基膜在室温下可以在15分钟内自行固化,而BPVB的基膜至少两周内没有任何变化。