Polystyrene Backbone Polymers Consisting of Alkyl-Substituted Triazine Side Groups for Phosphorescent OLEDs

Table 1

Overview of the yields and inserted nitriles for the synthesized monomers.

Number	Inserted nitrile	Inserted benzoic acid chloride	Overall yield (%)
5a		3-bromobenzoic acid chloride	61
5b		4-bromobenzoic acid chloride	26
6a		3-bromobenzoic acid chloride	57
6b		4-bromobenzoic acid chloride	67
7a		3-bromobenzoic acid chloride	29
7b		4-bromobenzoic acid chloride	59
8a		3-bromobenzoic acid chloride	41
8b		4-bromobenzoic acid chloride	55