Formation of Nanoporosity through Degradation of Poly(methylmethacrylate) in the PE-b-PMMA Block Copolymer

• Main Authors: Yu-Hung Lai, 賴育宏
• Other Authors: Chien-Chao Tsiang
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/85017566957265890353

碩士 === 國立中正大學 === 化學工程所 === 96 === A PE-b-PMMA has been formed via hydrogenation of PB-b-PMMA which was synthesized via anionic polymerization. To achieve the desired morphology, we have blended a homo-polyethylene into PE-b-PMMA enabling the PMMA phase to self-assemble as cylinders. The PE-b-PMMA/homo-polyethylene has been cast into films under various temperatures, rotation speeds, and annealing durations. Afterwards, the PMMA microdomains are cleaved via UV-Light degradation and removed by acetic acid resulting in the formation of a nanoporous PE film. SEM and AFM images indicate that the resulting PE film has a pore size of 25~50 nm and thus is potentially useful for photonic crystal or fuel cell applications.