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Me
Me
CH
Me
H
CH 2
H
H
C
CH 2
N
+
NH
CH 2
C
Me
CO
CO
HO 2 C
CO
Me
O
H
CH 2
C
Me
Me
Me
-H 2 O
Me
H
C
H
CH 2
N
CH 2
Me
CO
CO
Me
CH 2
NH
CH 2
CH
Me
C
H
Me
Me
CH
O
CO
CO
R
Hybrane
O
CO 2 H
CO
H 2
N
NH 2
+
O
CO
CO 2 H
O
CO 2 H
CO
H 2
N
N
CO
CO 2 H
Formula 10.5
less reactive, the rapid reaction with two a 2 monomers yields an a 2 b 0 oligomer. In
both cases the further course of the polycondensation and the resulting architecture
corresponds to those of a normal ab 2 polymerization (see Chap. 11 ) .
A monomer such as glycerol represents borderline case, because the primary
and secondary OH groups do not differ much in reactivity. Hence, cross-linking
 
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