Identification of Individual Organic Compounds

Eng., D.Sc. Fritz Feigl

doi:10.1016/b978-0-08-042135-3.50009-7

Cited by 1 publication

(1 citation statement)

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“…1774 cm -1 is the stretching vibration absorption peak of C=O, which has both; 1611 cm -1 and 1509 cm -1 are the skeleton vibration absorption peaks of the benzene ring, both of which are present. 1282 cm -1 and 1101 cm -1 are the characteristic absorption peaks of the sulfoxide group [10], BPS-PC has them, but BPA-PC does not. 1220 cm -1 , 1176 cm -1, and 1135 cm -1 are the stretching vibration peaks of C-O, which has both.…”

Section: Product Structure Characterizationmentioning

confidence: 99%

Study on Preparation and Properties of Bisphenol S Polycarbonate

Liu¹,

E²

2023

J. Phys.: Conf. Ser.

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Bisphenol S replaces bisphenol A to synthesize bisphenol S polycarbonate, which introduces the sulfone group in polycarbonate, improves the heat resistance and flame resistance of polycarbonate, and expands its application field. In this experiment, bisphenol S reacts with triphosgene to synthesize bisphenol S polycarbonate by interface polycondensation method. The effects of various factors on the product’s molecular weight are investigated and the optimal conditions of reaction are obtained. Through the infrared absorption spectrum, we verify the product structure. Through the Ubbelohde viscometer, the maximum viscosimeter molecular weight is measured and calculated to be 18500. Through the dilatometer, we detect the product’s temperature of glass transition at 166.5°C, which indicates that bisphenol S polycarbonate has good heat resistance. The limiting oxygen index of the product is 33.5%, and the combustion performance level reaches V-0, which indicates that bisphenol S polycarbonate has good flame retardancy.

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Section: Product Structure Characterizationmentioning

confidence: 99%