ma301982r_si_001.pdf (419.68 kB)
Synthesis of Dendronized Polymers by a “n + 2” Approach
journal contribution
posted on 2016-02-20, 06:36 authored by Hao Yu, A. Dieter Schlüter, Baozhong ZhangA series of dendronized polymers (DP) were synthesized
by attaching
second-generation dendron onto the preformed DP core of generation
1–3 (n + 2 approach). The obtained DP were
compared to the reference DP prepared by the conventional graft-from
(n + 1) approach using GPC, UV–vis, 1H NMR, and AFM analyses. The former two analyses showed that the
newly prepared DP tend to have a more significant decrease in dendron
integrity as the generation increases; however, the striking similarities
from the latter two analyses suggest that the properties of the new
samples do not much deviate from the reference DP by the graft-from
approach. The advantages of the “n + 2”
approach over the “n + 1” approach
include shorter reaction time, higher yield, and easier purification.
On top of these, it has the power of surpassing some selected postpolymerization
steps, which are required for the conventional graft-from approach
and may be detrimental in some occasions.