Notroxide mediated radical polymerization of styrene irradiated by TEMPO with UV light

作者：Huang Jian Ying^*; Zou You Si

来源：Chemical Journal of Chinese Universities, 2008, 29(8): 1689-1693.

• UV-irradiated polymerization
• nitroxide mediated radical polymerization (NMRP)
• styrene

Nitroxide mediated radical polymerization(NMRP) was employed to synthesize polystyrene in the presence of TEMPO irradiated with UV light at 50 degrees C. The polymerization exhibited the characteristic of a controlled polymerization. In comparison with the thermal-initiated polymerization, the condition of UV-irradiated polymerization is milder and the rate is faster. The photopolymerization can be realized at 50 degrees C and the conversion can reach 99% within 10 h. The influence of concentration of photo-initiator and light intensity was discussed. The molecular weight can be controlled in the range of 3 x 10(4)-1 x 10(5) and the higher light intensity is good for controlling the polymerization.

• 出版日期2008-8
• 单位厦门大学; 中国科学院福建物质结构研究所