Dendronized polymers macromonomer route

The macromonomer route assures uniform distribution of dendrons along the polymer backbone. Acrylates and styrenes with pendant dendrons proved to be well suited for polymerisation [57]. However, steric hindrance between monomers bearing higher-generation dendrons and the spatial requirements of the end of the chain cause problems The monomer reacts with the chain end only in the case of slight, if any, steric hindrance. Thus the method only provides access to dendronised linear polymers with relatively low molar masses... 

The two convergent approaches toward dendronized polymers offer complementary control over structural parameters. The macromonomer route ensures well-defined connectivity between the dendron and the polymer, but affords polymers with broad dispersity and generally low degrees of polymerization. In the... 

Figure 20 Modes of grafting dendrimers or dendrons onto polymer backbones. Shown here are (A) the graft-to route, (B) the graft-front method, and (C) the macromonomer route. Source From Ref. 106.

Fig. 4. Routes A and B (a) and C (b) to dendronized polymers. They may be referred to as attach-to route (A), macromonomer route (B), and mixed route (C). The dendrons shown are of generation 3 (routes A and B) and generation 2 and 4 respectively (route C).

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