𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Peroxo salts as initiators of vinyl polymerization—V. Polymerization of acrylonitrile initiated by the peroxomonosulphate-thioglycolic acid system

✍ Scribed by G. Manivannan; P. Maruthamuthu

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
199 KB
Volume
25
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis

Almraet--Aqueous thermal polymerization of acrylonitrile (AN) initiated by peroxomonosulphate (HSO~, PMS)-thioglycolic acid (TGA) redox system was studied in the temperature range 30-60 °. The effects of [monomer], [initiator], [reducing agent], pH, ionic strength and temperature on rate of polymerization (Rp) were studied. Rp was found to depend on [AN] 2°, [HSO~] L° and [TGA] -L°. The overall activation energy was found to be 23.0 kJ. tool -~. A reaction scheme involving initiation by RS', SO~-and OH and linear termination has been proposed to explain the kinetics.

📜 SIMILAR VOLUMES

Peroxo salts as initiators of vinyl poly
Peroxo salts as initiators of vinyl polymerization—III. Polymerization of acrylonitrile initiated by the peroxomonosulphate-Co(II) redox system
✍ G. Manivannan; P. Maruthamuthu 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 228 KB

The kinetics of aqueous polymerization of acrylonitrile initiated by peroxomonosulphate-Co(II) redox system have been investigated in the range 30-50°C under nitrogen at a fixed ionic strength of 0.30mol-dm -3. The overall rate of polymerization, followed gravimetrically, was found to be proportiona

Acidic peroxo salts: A new class of init
Acidic peroxo salts: A new class of initiators for vinyl polymerization—II: Kinetics of polymerization of acrylonitrile initiated by potassium monopersulphate catalysed by Mn(II)
✍ R.K. Samal; M.C. Nayak; D.P. Das 📂 Article 📅 1982 🏛 Elsevier Science 🌐 English ⚖ 312 KB

Kinetics of the polymerization of acrylonitrile initiated by an acidic peroxo salt (potassium monopersulphate) catalysed by Mn(II) have been investigated in aqueous systems over the range 30-50'. The rates of polymerization (Rv) have been studied for various concentrations of monomer and initiator.

Polymerization of acrylonitrile initiate
Polymerization of acrylonitrile initiated by thiourea-vanadium(V) redox system
✍ Baishnab C. Singh; Triyama R. Mohanty; Padma L. Nayak 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 384 KB

The kinetics of polymerization of acrylonitrile initiated by V 5 + thiourea or V 5+-ethylene thiourea have been studied at 30, 35 and 40°C in nitrogen. The rates of polymerization and V 5+ disappearance, and the chain lengths of polymers were measured. The kinetics are consistent with the formation