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Heritage Science

Table 4 Characterization of PVC-PVAc dentures from NMD and NMAH by handheld Raman, µFTIR and XRF

From: Safeguarding our dentistry heritage: a study of the history and conservation of nineteenth–twentieth century dentures

Object

Handheld Raman

µFTIR

XRF

PVC: 638, 695, 1115, 1334, 1432 cm−1

PVC-PVAc copolymer: 692, 831, 967, 1025, 1100, 1238, 1371, 1431, 1739, 2969 cm−1

A1370cm−1/A1238cm−1 = 0.27*

Calcium Stearate: 2915, 2849, 1575 and 1542 cm−1

Not analyzed

PVC: 637, 695, 1432 cm−1

PVC-PVAc copolymer: 968, 1025, 1101, 1237, 1371, 1431, 1537, 1739, 2968 cm−1

A1370cm−1/A1238cm−1 = 0.28

Calcium Stearate: 2916, 2850, 1574 and 1540 cm−1

Cl

  1. *83% PVC:17% PVAc copolymer reference has a A1370cm−1/A1238cm−1 = 0.36
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