A semimicro thermomechanical technique for characterizing polymeric materials: Torsional braid analysis



An overview of a nondestructive semimicro mechanical technique–pioneered, developed, and exploited by the author–which is used for characterizing phase transitions and transformations in polymeric materials is presented. Particular attention is given to literature published since January, 1972, which pertains to advances in automation, data acquisition and processing, and application to polymeric systems. The instrument has been consolidated as a powerful and convenient mechanical spectrometer in this short period.