Table 4. Molecular Properties of PGBS and PGBAT Copolymers Synthesized Using Mechanical Stirring with an n_GA Feed Value of 90% on a 60 g Scale^a.

		feed	polymer
sample	time/h	nGA/mol %	nGA/mol %	B:A + T	Mn/g mol–1	Mw/g mol–1	Đ	yield/%
PGBS90	4	90	90	1:0.97b	54,800	97,000	1.77	97
PGBAT88	8	90	88	1:1.04	19,500	49,400	2.53	95

^aPolycondensation temperature was 210 °C. Both copolymers were synthesized using a B:A + T = 1.05:1.

^bB:S value.