𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis and characterization of keto-sulphide resins

✍ Scribed by Surekha R. Patel; Hasmukh S. Patel; Shanti R. Patel

Book ID
103074199
Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
219 KB
Volume
23
Category
Article
ISSN
0014-3057

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✦ Synopsis

Polycondensations of acetophenone and its 4-chloro-, bromo-, and methyl-and 3-nitro derivatives with formaldehyde in the presence of sodium hydrosulphide afford the corresponding keto-sulphide resins. These resins have been characterized by elemental analyses, estimation of h~" n by vapour pressure osmometry, measurement of solution viscosity in DMF, i.r. spectra and thermal gravimetric analysis. The formation of the resins is explained.

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