New synthesis of liquid polysulfide polymers in the presence of hydrazine. I. Synthesis of linear polysulfide polymers from 1,1′-[methylenebis (oxy)]-bis-[2-chloroethane] and sodium tetrasulfide

✍ Scribed by Mirjana E. Tenc-Popovic; Ljubinka J. Bogunovic; Dragana D. Jankovic; Aleksandar D. Velickovic

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 103 KB
• Volume: 35
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(199706)35:8<1363::aid-pola3>3.0.co;2-0

✦ Synopsis

The results of our studies show that liquid linear polysulfide polymers of an average molecular weight 4260-1030 g mol 01 can be obtained by the reaction of sodium tetrasulfide and 1,1 -[methylenebis(oxy)]-bis-[2-chloroethane] in the presence of 2.0-5.0 mol of hydrazine and at least 4.0 mol of sodium hydroxide/mol of hydrazine in a one-step procedure. The disulfide polymers in the form of sodium mercaptide are soluble in the supernatant liquid from which they are separated by acidification of the solution to a pH value of about 4. The average molecular weight and the content of sulfur in the obtained linear polymers were determined and their IR spectra were recorded.