Orientation and crystallinity measurements in injection moulded products

Orientation and crystallinity of isotactic polypropylene moulded products have beeninvestigated by means of infrared microscopy. The experimental techniques aredescribed elsewhere. The previous application to film casting products and theapplication in this work to injection-moulded products confirms their usefulness inpolymer science. Orientation and crystallinity distributions obtained for differentsamples are reported and briefly discussed