Copolymers of the styrene (ST) and the ICAA compounds, P(ST-co-ICAA) were prepared in 25-mL glass screw cap vials at ST/ICAA=3 (mol) the monomer feed using 0.12 mol/L of ABCN at an overall monomer concentration 2.44 mol/L in 10 mL of toluene. The copolymerization was conducted at 70ºC. After a predetermined time, the mixture was cooled to room temperature, and precipitated dropwise in methanol. The composition of the copolymers was determined based on the nitrogen content (cyano group in ICAA monomers). The conversion of the copolymers was kept between 10 and 20% to minimize compositional drift (Table ). Since ICAA monomers do not homopolymerize, the most likely structure of the copolymers would be short styrene sequences alternating with isolated ICAA monomer units (n = 1) (Scheme 2). a Conditions: ST/ICAA: 3 (mol) / Toluene / 70ºC / 5 hrs.