✦ LIBER ✦

Polymerization of methyl methacrylate by charge transfer mechanism by melamine and iron(III) complex

✍ Scribed by S. Hussain; N.N. Dass

Publisher: Elsevier Science
Year: 1982
Tongue: English
Weight: 246 KB
Volume: 18
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(82)90148-3

No coin nor oath required. For personal study only.

✦ Synopsis

Methyl methacrylate (MMA) can be polymerized by the charge-transfer complex formed by the interaction of melamine (MM), MMA and carbon tetrachloride in a non-aqueous solvent like dimethyl sulphoxide (DMSO) or N-N-dimethylformamide. The polymerization can be accelerated by Lewis acids like Fe 3+. This paper reports the polymerization of MMA initiated by MM and CCI 4 and accelerated with hexakis dimethylsulphoxide iron(Ill) perchlorate [Fe(DMSO)6] (CIO4)~, A, at 60'. Induction periods were observed for the polymerization initiated by MM and CC14 alone, but not when the molar ratio of MM to A became 3:1. The molecular weights of the polymers with 3:1 molar ratio of MM to A were higher than with MM alone. The rate constant for the polymerization of MMA in presence of [Fe(MM)3] 3+ was 1.4181 × 10 _51 tool-~ sec-~ at 60'. The transfer constant for CCI.,, in the absence of A, is 4.66 × 10 3

📜 SIMILAR VOLUMES

Polymerization of methyl methacrylate by

Polymerization of methyl methacrylate by charge-transfer mechanism with 2,2′-bipyridine and iron (III) complex

✍ Shashi D. Baruah; Aradhana Goswami 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB 👁 2 views

Polymerization of methyl methacrylate (MMA) by the charge-transfer complex formed by the interaction of 2,2-bipyridine (bpy), MMA, and carbon tetrachloride (CCl 4 ) was studied in dimethylsulfoxide (DMSO) at 60ЊC. The rate of polymerization (R p ) is sensitive to the [CCl 4 ] at low concentration of

Mechanism of polymerization of methyl me

Mechanism of polymerization of methyl methacrylate by triphenylphosphine and Fe(III) complex in dimethyl sulphoxide

✍ A. Dutta; P.K. Mahato; N.N. Dass 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 336 KB

The triphenylphosphine (TPP) initiated polymerization of methyl methacrylate (MMA) in dimethyl sulphoxide (DMSO) has been studied. The polymerization was found to be solvent-sensitive and could be accelerated by Lewis acids like Fe 3÷ . Kinetic studies showed that the propagation was free radical in

Polymerization of methyl methacrylate by

Polymerization of methyl methacrylate by imidazole–carbon tetrachloride charge-transfer system

✍ Aradhana Goswami; Shashi D. Baruah; Narendra N. Dass 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 615 KB

The kinetics of charge-transfer (CT) polymerization of methyl methacrylate (MMA) in the presence of imidazole (Imy) and CCI, was studied in dimethyl sulfoxide (DMSO) at 60°C. The rate of polymerization (R,) is sensitive t o the [CCl,] up to a concentration of 0.60 mol L-I, but at a higher concentrat

Chain transfer polymerization of methyl

Chain transfer polymerization of methyl methacrylate initiated by organolanthanide complexes

✍ Mitsufumi Nodono; Toru Tokimitsu; Seiji Tone; Takayuki Makino; Akira Yanagase 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 92 KB 👁 3 views

Effect of Fe(III) on the polymerization

Effect of Fe(III) on the polymerization of butyl methacrylate initiated by a charge-transfer mechanism

✍ Shashi D. Baruah 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 455 KB 👁 2 views

## Abstract The effect of the Lewis acid, iron(III) tris(oxalato)ferrate(III) tetrahydrate (Fe‐[Fe(C~2~O~4~)~3~].4H~2~O) (A) on the polymerization of butyl methacrylate (BuMA) initiated by a charge‐transfer mechanism has been studied in dimethyl sulfoxide (DMSO) at 60°C. 2,4‐dinitrophenylhydrazine

Initiation of polymerization of methyl m

Initiation of polymerization of methyl methacrylate by oxalic acid and iron(III) mixtures

✍ S.S. Begum; N.N. Dass 📂 Article 📅 1982 🏛 Elsevier Science 🌐 English ⚖ 185 KB