Synthesis of terminal-biradical compounds consisting of two N-oxyl groups connected with conjugated π-systems
摘要:
Terminal-biradical compounds 1 having two N-oxyl groups connected with conjugated pi-systems were synthesized by (1) addition of magnesium acetylide to 4-oxo-TEMPO, followed by dehydration, or (2) cross-coupling between acetylene and vinyl triflate derived from 4-oxo-TEMPO. (C) 1997 Elsevier Science Ltd.
Synthesis of terminal-biradical compounds consisting of two N-oxyl groups connected with conjugated π-systems
摘要:
Terminal-biradical compounds 1 having two N-oxyl groups connected with conjugated pi-systems were synthesized by (1) addition of magnesium acetylide to 4-oxo-TEMPO, followed by dehydration, or (2) cross-coupling between acetylene and vinyl triflate derived from 4-oxo-TEMPO. (C) 1997 Elsevier Science Ltd.
METHOD OF GRAFTING ETHYLENICALLY UNSATURATED CARBOXYLIC ACID DERIVATIVES ONTO THERMOPLASTIC POLYMERS USING HYDROXYLAMINE ESTERS
申请人:Ciba Specialty Chemicals Holding Inc.
公开号:EP1404729B1
公开(公告)日:2007-11-21
CROSSLINKING OF UNSATURATED POLYESTERS BY THE USE OF HYDROXYLAMINE-ESTERS
申请人:Ciba Holding Inc.
公开号:EP1440115B1
公开(公告)日:2009-08-05
METHOD OF PREPARING ETHYLENE POLYMERS BY CONTROLLED HIGH PRESSURE POLYMERIZATION
申请人:Ciba Specialty Chemicals
Holding Inc.
公开号:EP1727837B1
公开(公告)日:2007-12-12
Method of Preparing Ethylene Polymers by Controlled High Pressure Polymerization
申请人:Roth Michael
公开号:US20080234453A1
公开(公告)日:2008-09-25
The present invention relates to a method for the radical polymerization or copolymerization of ethylene at high pressures using a hydroxylamine ester as radical initiator. The hydroxylamine esters according to the invention are suitable initiators for the high pressure polymerization of ethylene leading to high molecular weight polyethylenes with narrow molecular weight distributions (Polydispersed Index PD=1.2−4.5).
Method Of Preparing Ethylene Polymers By Controlled High Pressure Polymerization
申请人:BASF SE
公开号:US20130150542A1
公开(公告)日:2013-06-13
The present invention relates to a method for the radical polymerization or copolymerization of ethylene at high pressures using a hydroxylamine ester as radical initiator. The hydroxylamine esters according to the invention are suitable initiators for the high pressure polymerization of ethylene leading to high molecular weight polyethylenes with narrow molecular weight distributions (Poyldispersity Index PD=1,2−4.5).