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. 2012 Jul 5;2012:390947. doi: 10.1155/2012/390947

Table 2.

Characteristics of triblock copolymers synthesised in the presence of α-methylstyrene.

N Molar ratio α-methyl styrene : Sn(Oct)2 Mn (SEC), Da, (Mn/Mw) Crystallinity (%) and (melting temperature (°C))
PCL PLA
1 2.5 63,231 (1.41) 32.5 (57.9) 52.7 (164.6)
2 25 75,981 (1.58) 28.1 (51.9) 39.1 (164.0)
3 125 66,751 (1.50) 0 28.0 (142.0)
4 250 53,175 (1.51) 43.8 (52.4) 52.6 (165.3)
5 2500 39,584 (1.54) 14.6 (43.2) 39.7 (159.2)
6 No protector 26,583 (1.72)

*Reaction performed without solvent.