Donatur Intern għal Ziegler-Night (Z-n) Katalisti
Isem tal-Prodott: Isopropyl-2-isopentyl-1,3-propanediol dimetilether
Sinonimu: 2-isopropyl-2-(1-metilbutyl)-1,3-dimethoxypropane
CAS Nru: 129228-11-1
Ziegler-Natta eteroġeneous (Z-n) Il - katalisti huma sintetizzati b'dichloride tal-manjeżju bħala
support.Turing it-tagħbija tat-tetrachloride tat-titanju,Donatur intern huwa inkorporat biex jifforma
il-katalist ewlieni.alkylaluminum cocatalysts u donaturi esterni huma miżjuda waqt il-propilene
polimerizzazzjoni.
Kemm donaturi interni kif ukoll esterni għandhom rwoli kruċjali fit-titjib tal-attività tal-katalist u l-kontroll
l-isotattiċità tal-polipropilene,Fost proprjetajiet oħra.
Dimethyl Ether Strutturali Motif jirrappreżenta klassi ġdida ta 'donaturi.
Dawn jistgħu jiksbu attività għolja u isotattiċità għolja fil-polipropilene anke mingħajr donatur estern.
This significantly reduces thecomplexity of the polymerization system and holds substantial practical
value.
Tipi strutturali differenti ta 'diethers, Meta jintużaw bħala donaturi interni fil-katalizzaturi Z-N, esebizzjoni distinta
application characteristics.2-Isopropyl-2-isopentyl-1,3-propanediol dimethyl ether, also known as
2-isopropyl-2-isopentyl-1,3-dimethoxypropane, is a typical representatve of the diether internal
donor class:
European Patent EP0362705 (Montedison, 1989) indicates that using 2-isopropyl-2-isopentyl-
1,3-propanediol dimethyl ether as the internal donor achieves a catalytic activity of 3950 g
polypropylene per gram catalyst (3950 g PP/g cat) and an isotacticity of 98.5%.The specific
application scenarios and performance of the internal donor also depend significantly on the user’s
development efforts.
