The existing photo-induced electron/energy transfer reversible addition-fragmentation chain transfer polymerization (PET-RAFT) systems using g-C₃N₄ as catalyst are complicated and often require modification of g-C₃N₄ or additives as co-catalyst. Herein, we propose an economical g-C₃N₄ catalyzed PET-RAFT polymerization without any additives. The good catalytic ability of g-C₃N₄ is attributed to the fact that the thermal exfoliation by secondary calcination increases the specific surface area and thus exposes more photocatalytic active sites. The g-C₃N₄ catalyzed PET-RAFT polymerizations of methyl methacrylate were successfully carried out under blue LEDs. The faster polymerization rates without prior deoxygenation showed good oxygen-tolerant. The g-C₃N₄ can be easily recovered after polymerization and cycled at least seven times with little loss of catalytic performance.

现有的使用gC ₃ N ₄作为催化剂的光诱导电子/能量转移可逆加成-断裂链转移聚合(PET-RAFT)体系很复杂并且通常需要对gC ₃ N ₄或添加剂作为助催化剂进行改性。在此，我们提出了一种经济的 gC ₃ N ₄催化 PET-RAFT 聚合，无需任何添加剂。_{gC 3} N ₄良好的催化能力归因于二次煅烧的热剥离增加了比表面积，从而暴露出更多的光催化活性位点。gC ₃ N ₄甲基丙烯酸甲酯催化 PET-RAFT 聚合在蓝色 LED 下成功进行。无需事先脱氧即可实现更快的聚合速率，显示出良好的耐氧性。gC ₃ N ₄聚合后可以很容易地回收并循环至少七次，催化性能几乎没有损失。