Soviet Plastics

Soviet Plastics

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In the preparation of the standards the 2, 4-TDI dimer was introduced into the powder of dried polyurethane foam as a 0-3% solution in CHCl3, the ... mortar and the portion of mixture (calculated to give 100 mg/cm2 of the area of the disc) moulded under a pressure of 4, 000 kgf/cm2 under vacuum for 20 min. The IR spectrum of the disc was recorded in the 2, 000-4, 000 cm 1 region (Fig. ... The optical densities of the 2, 270 and 2, 950 cm 1 bands were measured relatively to the base lines.

Title:Soviet Plastics
Publisher: - 1967-07

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