Polyoxazoline linear

Preparation of Linear Poly(ethyleneimine) by Hydrolysis of Polyoxazoline... 

Linear (difunctional) and star-shaped (tetrafunctional) polyoxazolines with M up to 8000 and MJM < 1.3 were prepared using these initiators [182]. 

The properties and applications of linear PEI are described in the polyoxazoline chapter. 

There are two different ways of preparing the simplest polyamine, polyethylen-imine. The first method leads to a commercial polymer. The parent monomer (aziri-dine) is used and the resulting polymer is highly branched due to pronounced chain transfer. The second method, leading to linear polyethylenimine, requires the preparation of polyoxazoline intermediate and is discussed in the next section. 

Polyoxazolines have not yet been commercialized, but several derived polymers found various uses in polymer synthesis. Particularly, the conversion of these polymers into linear crystalline polyethyleneimine, unavailable otherwise, has interesting potentials. 

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