Figure 2.
Characterization of LAL polymers. (a) Dependence of the fraction of reversible groups λf in a polymer on the initial feed ratio λi between AAPA sticky monomers and HA spacer monomers. (b) Dependence of conversion on the reaction time for different fractions of sticky AAPA monomers. (c) Gel permeation chromatography (GPC) of the reversible middle blocks. (d,e) GPC traces of triblock copolymers: (d) fixed end block volume fraction (f ≈ 10%) but various fractions of reversible bonds (λ = 0, 0.09, and 0.25); (e) fixed λ = 0.25 but increasing f from 10 to 33%.