Hybrid Copolymerization of epsilon-Caprolactone and Methyl Methacrylate

作者：Yang, Hongjun; Xu, Jinbao; Pispas, Stergios; Zhang, Guangzhao^*

来源：Macromolecules, 2012, 45(8): 3312-3317.

DOI：10.1021/ma300291q

• Cyclic esters
• Decomposition temperature
• Methyl methacrylates
• Nuclear Magnetic Resonance (NMR)
• Polymer chains
• Random copolymer
• Vinyl monomers
• Vinyl polymerization

Copolymerization of epsilon-caprolactone and methyl methacrylate with (1-tert-butyl-4,4,4-tris(dimethylamino)-2,2-bis[tris(dimethylamino)phophoranylidenamino]-2A5,A5-catenadi(phosphazene) (t-BuP4) as the catalyst has been studied. Nuclear magnetic resonance (NMR) and differential scanning calorimetry (DSC) measurements indicate that the cyclic ester and vinyl monomer form a random copolymer. Thermogravimetric analysis (TGA) measurements demonstrate that such a random copolymer exhibits a decomposition temperature higher than those of the corresponding homopolymers. The present study reveals a "hybrid copolymerization" i.e., a combination of vinyl polymerization and ring-opening polymerization, which makes the incorporation of cyclic and vinyl monomers into the same polymer chain possible. Hybrid copolymerization is expected to produce a number of new interesting polymers.

• 出版日期2012-4-24
• 单位中国科学技术大学; 华南理工大学