GPC characterization of cyclic REMP BBPs at varying backbone target degrees of polymerization (DP).

Monomera	Theoretical DPb	Measured DPc	Theoretical Mnb (kDa)	Measured Mnc (kDa)	Đ c
PS-MM	10	18	46.0	83.0	1.1
PS-MM	20	28	90.0	130	1.1
PS-MM	30	37	140	170	1.2
PS-MM	40	43	180	200	1.2
PS-MM	50	52	230	240	1.3
PDMS-MM	10	41	63.0	260	1.1
PDMS-MM	20	81	130	510	1.1
PDMS-MM	30	114	190	720	1.1
PDMS-MM	40	151	250	950	1.2
PDMS-MM	50	175	320	1100	1.2

^aPS-MMM_n = 4.6 kDa; PDMS-MMM_n = 6.3 kDa.

^bCalculated by [MM]₀/[I]₀, where [MM] is the molar amount of macromonomer and [I] is the molar amount of CB6 (plus 32 eq. pyridine).

^cDetermined by GPC-MALS.