The GPC spectrum of PC-GA is shown in Fig. 3 and the result is
summarized in Table 3. Peak 1 and Peak 2 in Fig. 3 represent that there are two molecular mass levels. And the area within red zone
of integral curve shows that the conversion rate of PC-GA is more
than 90%. According to Table 3, the weight-average molecular mass
(Mw) and number-average molecular mass (Mn) are 41199 Da and
22936 Da, respectively. And the PDI (Mw/Mn) is 1.80 which indicate
a quite narrow molecular weight distribution. From the GPC result,
it can be concluded that the synthesized PC-GA is at high purity
and quality.