公开(公告)号：DE2427957A1

公开(公告)日：1976-01-08

申请号：DE2427957

申请日：1974-06-10

Applicant: BASF AG

Inventor： BURCHARD WALTHER PROF DR ,  ESCHWEY HELMUT DIPL CHEM

IPC: B01J20/22 ,  C08F257/00 ,  C08G81/02 ,  C08F12/36

Abstract: A process for the manufacture of polymers of net-shaped crosslinked structure and with uniform length of the crosslinks. In this process, polyfunctional organoalkali metal compounds which have been manufactured by reaction of divinylbenzene with low molecular weight organoalkali metal compounds, are reacted direct, or after prior reaction with anionically polymerizable monomers, with bifunctional or polyfunctional coupling agents. The polymers of net-shaped crosslinked structure have macroporous properties and can be employed, for example, as gels in gel permeation chromatography or as carriers in the synthesis of peptides.

公开(公告)号：DE2427955A1

公开(公告)日：1976-01-08

申请号：DE2427955

申请日：1974-06-10

Applicant: BASF AG

Inventor： BURCHARD WALTHER PROF DR ,  ESCHWEY HELMUT DIPL CHEM

IPC: C08F4/46 ,  C08F12/36

Abstract: Soluble, polyfunctional organo-alkali metal cpds. with at least 2 alkali metal C bonds per mol. and an average mol. wt. 500-10,000,000 are prepd. by reacting a) divinylbenzene or its mixts. with other monoaromatic vinyl cpds. with b) organo-alkali metal cpds. with up to 50C atoms in the organic gp. in an inert organic solvent such that the amt. of divinylbenzene in the reaction mixt. does not lie above 2.5 wt. % (w.r.t. the reaction mixt.) and the mol. ratio divinylbenzene: alkali metal content has between 0.5:1-20:1. The polymers are microgels and used in initiating anionic polymn. reactions. They are esp. useful in preparing ester-shaped polymers, ie. polymers with any number of branches and no intermolecular crosslinking.

公开(公告)号：DE2521200A1

公开(公告)日：1976-12-02

申请号：DE2521200

申请日：1975-05-13

Applicant: BASF AG

Inventor： FAHRBACH GERHARD DR ,  SEILER ERHARD DR ,  BURCHARD WALTHER PROF DR ,  ESCHWEY HELMUT DIPL CHEM

IPC: C08F212/06 ,  C08F212/36 ,  C07F1/02 ,  C08F297/02

公开(公告)号：DE2427956A1

公开(公告)日：1976-01-08

申请号：DE2427956

申请日：1974-06-10

Applicant: BASF AG

Inventor： BURCHARD WALTHER PROF DR ,  ESCHWEY HELMUT DIPL CHEM

IPC: C08F8/00 ,  C08F297/02 ,  C08F12/36

Abstract: A process for the manufacture of polymeric compounds which have any desired number of functional end groups. In this process, polyfunctional organoalkali metal compounds which have been manufactured by reaction of divinylbenzene with low molecular weight organoalkali metal compounds, are reacted direct, or after prior reaction with anionically polymerizable monomers, with reactive low molecular weight compounds. The polymeric compounds which have functional end groups can be employed, for example, as emulsifiers, secondary dispersions, secondary dispersing agents or polymeric carrier substances.