Table 2. Alternating Copolymerization (AROMP) of Bicyclic Amides 1 or 1′ and Cyclohexenes 3 Catalyzed by Catalyst 2^a.

entry	A/B	[A]:[3]:[2]	[2] (M)	time (h)	% convb	DP[AB]c	MwGPC d (kDa)	MnGPC d (kDa)	ĐM	Mntheor e (kDa)
1	1c/3	10:20:1	0.01	1.5	100	10	ndf	nd	nd	nd
2	1c/3	50:100:1	0.002	2	100	50	17.0	9.4	1.8	14.5
3	1d/3	50:100:1	0.002	1	100	g	16.0	10.1	1.6	15.6
4h	1a′/3	50:100:1	0.002	2	100	50	15.1	12.5	1.2	15.8
5h	1a′/3	100:200:1	0.002	6	100	100	30.7	29.1	1.1	31.9
6h	1b′/3	150:300:1	0.002	2.5	100	140	40.3	34.0	1.2	45.7
7h	1b′/3	300:600:1	0.001	3.5	90	260	80.9	69.6	1.2	91.0
8i	1c′/3	100:200:1	0.002	2	100	100	28.4	20.5	1.4	28.1
9i	1c′/3	500:1000:1	0.0004	6	85	420	130.9	111.6	1.2	137.7

^aAll preparative polymerization experiments were performed three times. Representative molecular weight data are presented from a single polymerization.

^bConversion was determined by monitoring the disappearance of the amide resonance in 1 or 1′.

^cDegree of polymerization (DP) was determined for the AB repeat by integration of polymer resonances relative to the styrene end group. We estimate the integration error to be within 5%.

^dM_w = weight-average molecular weight; M_n = number-average molecular weight, determined by GPC.

^eTheoretical M_n calculated from the monomer:catalyst feed ratio.

^fNot determined.

^gThe DP could not be determined because of spectroscopic overlap and was estimated from the feed ratio of 1d and catalyst 2.

^hIsomerized amide was isolated and fresh 2 added before AROMP in CDCl₃.

ⁱIsomerized amide was isolated and fresh 2 added before AROMP in CD₂Cl₂.