Star polymer

摘要

A star polymer is produced by converting a central compound having at least three functional groups X, an arylene compound having two functional groups Y, and a terminal group compound having a functional group Z, the functional groups X of the central compound each reacting with a functional group Y of the arylene compound, forming a covalent bond, and the functional group Z of the terminal group compound reacting with a functional group Y of the arylene compound, forming a covalent bond, the terminal group compound being used in a stoichiometric quantity that corresponds essentially to the stoichiometric quantity of the functional groups X of the central compound, and to a method for producing star polymers, a polymer mixture including star polymers, and to the use of star polymers.

主权项

1. A star polymer produced by a process comprising:
converting (i) a central compound having at least three functional groups X, (ii) an arylene compound having two functional groups Y, and (iii) a terminal group compound having a functional group Z, wherein the functional groups X of the central compound each react with a functional group Y of the arylene compound and form a covalent bond, wherein the functional group Z of the terminal group compound reacts with a functional group Y of the arylene compound and forms a covalent bond, and wherein the terminal group compound is used in a stoichiometric quantity which corresponds essentially to the stoichiometric quantity of the functional groups X of the central compound; wherein the conversion is catalyzed by one of platinum, palladium, or nickel, and wherein the stoichiometric ratio of the terminal group compound to the arylene compound is between 1:10 and 1:360.