Table 1.

Optimization of Polymerization and atRA Incorporation Conditions^a

conditions	atRA recrystallization	polymerization time	atRA structure retention
60 °C,   10% w/w	yes	5 days	nt
37 °C,   10% w/w	yes	20 days	nt
60 °C,   30% w/w	no	5 days	yes
37 °C,   30% w/w	no	20 days	no

^ant: not tested.

atRA concentration was 4 mg/mL. Structure retention assessed using HPLC. x% w/w indicates POC concentration in ethanol used.