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. 2020 Sep 11;53(18):7925–7935. doi: 10.1021/acs.macromol.0c01709

Table 1. Structural Parameters of PGS Synthesized Using 13.6 wt % of CALB in Different Reaction Conditions for 24 h.

								y_i (%)^a
solvent	T (°C)	p_COOH^a	p_OH^a	M_n (kDa)^a	M_w (kDa)^b	Đ^b	DB (%)^a	1T	2T	1,3L	1,2L	1,2,3D
tetrahydrofuran	40	0.92	0.64	3.2	10	5.6	38	24	2	39	18	17
	50	0.91	0.64	3.0	9	5.4	41	23	3	34	18	18
	60	0.87	0.61	1.9	7	4.6	34	26	3	40	16	15
tert-butanol	40	0.76	0.57	1.0	2	2.1	25	34	4	35	18	9
	50	0.79	0.57	1.1	3	2.0	24	31	4	39	17	9
	60	0.83	0.59	1.4	4	2.7	28	28	4	40	17	11
	70	0.83	0.59	1.4	4	2.7	28	27	4	41	17	11
acetone	30	0.94	0.64	3.8	13	6.5	34	21	2	47	15	16
	40	0.97	0.66	9.4	16	6.8	41	19	3	41	17	20
	50	0.94	0.65	4.9	15	6.7	42	21	3	39	17	20
acetonitrile	40	0.82	0.59	1.4	3	3.1	33	32	3	35	16	13
	50	0.84	0.60	1.4	4	3.1	38	28	3	42	15	12
	60	0.95	0.61	2.7	5	3.4	31	26	3	42	16	13

^a

Determined by ¹H NMR.

^b

Determined by GPC.