Copolymerization of Butadiene and Isoprene by Ziegler Type Catalyst
نویسندگان
چکیده
منابع مشابه
Copolymerization Using Lipase Catalyst
Enzymatic ring-opening copolymerization of lactones was carried out by using Pseudomonas f luorescens lipase in bulk. In the copolymerizaton of r-caprolactone (E-CL) and b-valerolactone at 60°C for 10 days a copolymer with molecular weight of 3.7 x 103 was obtained and its structure was found to be of random structure having both units from 13C NMR anlaysis. Effects of the feed ratio, the react...
متن کاملthe investigation of the relationship between type a and type b personalities and quality of translation
چکیده ندارد.
Future directions--toxicology studies of 1,3-butadiene and isoprene.
Examination of a profile of data already existing on 1,3-butadiene shows adequate knowledge in many areas of toxicology that are conventionally required in hazard identification. However, while much progress has been made in areas of metabolism and pharmacokinetics, further studies would be worthwhile to improve mechanistic understanding such as the examination of alternate metabolic pathways, ...
متن کاملCopolymerization of ethylene with α-olefins over highly active supported Ziegler-Natta catalyst with vanadium active component
The new highly active supported vanadium-magnesium catalyst (VMC) has been studied in α-olefin (1-butene, 1-hexene)/ ethylene copolymerization in the presence of hydrogen. Data on the effect of α-olefin/ethylene ratio in copolymerization on the content of branchings in copolymers, kinetic profile, copolymer yield, molecular weight and molecular weight distribution of copolymers have been obtain...
متن کاملDetermination of kinetic parameters for ethylene polymerization (with and without hydrogen) by Ziegler-Natta catalyst.
In this study, slurry polymerization kinetics of ethylene with TiCl4/Mg(OEt)2/AlR3 Ziegler-Natta catalysts in various conditions using the model of sum square error (SSE) (method I) and model of least square error (LSE) (Method II) was investigated. For this purpose the molecular weight distributions of the samples were deconvoluted to the minimum number of Flor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Kobunshi Kagaku
سال: 1964
ISSN: 1884-8079,0023-2556
DOI: 10.1295/koron1944.21.9