𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Polymerization of 4-methylpentene-1 and its copolymerization with propylene on the TiCl3 + (C2H5)2AlCl complex catalyst

✍ Scribed by V.Sh. Shteinbak; V.V. Amerik; F.I. Yakobson; Yu.V. Kissin; D.V. Ivanyukov; B.A. Krentsel


Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
720 KB
Volume
11
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis


The main kinetic laws governing 4-methylpentene-I (MP) polymerization and copolymerization with propylene (P) on the catalytic system TiCI 3 + (C2Hs)gAIC1 between 30 and 70 Β° were studied. The MP homopolymerization is kinetically first-order in monomer and TiCl> The effective activation energy is 8'5 kcal/mole. The active site concentrations in MP polymerization at various temperatures were evaluated. The copolymerization constants were determined: for P r, = 6-44 _+ 05: for MP r2 = 0.31 + 0"05. The structure of the copolymers was studied, some of their properties are described.


πŸ“œ SIMILAR VOLUMES


Filling of polyethylene by inorganic fil
✍ D. Damyanov; Iv. Ivanov; M. Velikova πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 288 KB

It is shown that the system TiC14-(C2Hs)2AICI-(C6Hs)2Mg is highly efficient and very promising as a catalyst of the filling of polyethylene during the polymerization with inorganic fillers (chalk, marble powder, perlite, kaolin and dolomite). The preliminary activation of the filler, the formation t

On the 1,4-cis-Polymerization of Butadie
Polymerization of propylene with the [Ar
✍ Jizhu Jin; Shingo Tsubaki; Toshiya Uozumi; Tsuneji Sano; Kazuo Soga πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 367 KB πŸ‘ 1 views

Polymerization of propylene was conducted at 0 -150Β°C with the [ArN(CH2)3NAr]TiClz (Ar = 2,6-'Pr2C6H3) complex using a mixture of ~a l k y l a l u m i n i ~ (AIR3, R = methyl, ethyl and isobutyl) and Ph3CB(C&& as cocatalyst. When AlMe3 or AlEt3 was employed, atactic polypropylene (PP) was selectivel

TiCl4/MgH2-supported Ziegler-type cataly
✍ Isam A. Jaber; Gerhard Fink πŸ“‚ Article πŸ“… 1994 πŸ› John Wiley and Sons 🌐 English βš– 544 KB

## Abstract The effect of varying ^14^CO contact time upon the concentration of active centres __C__\* in ethylene homopolymerization using the TiCl~4~/MgH~2~ Β· Al(C~2~H~5~)~3~ catalytic system shows that the polymer radioactivity, and hence __C__\*, increase sharply in the first sixty minutes of ^