Figure 11.

(A) Synthesis and depolymerization of bottlebrush polypentenamers, adapted from Scheme 1, ref (79). (B) SEC traces of bottlebrushes (blue solid trace, M_n = 248.6 kg mol^–1, Đ = 1.35 and (red solid trace, M_n = 231.1 kg mol^–1, Đ = 1.18) and their quantitative depolymerization to α-cyclopentenyl polystyrene grafts (blue dash-dot trace, M_n = 2.1 kg mol^–1, Đ = 1.05 and red dash-dot trace, M_n = 1.9 kg mol^–1, Đ = 1.16), respectively. Both depolymerizations were performed in toluene ([olefin]₀ = 24 mM (5% (w/v)), [cat.]₀ = 2.4 mM) at 70 °C for 24 h using HG2 catalyst. Figure adapted from ref (79). Copyright 2019 American Chemical Society.