物理化学学报 >> 2002, Vol. 18 >> Issue (08): 727-731.doi: 10.3866/PKU.WHXB20020811

研究论文 上一篇    下一篇

非水凝胶原位聚合法制备含钐PMMA材料的研究

林美娟;章文贡;王文   

  1. 福建师范大学高分子研究所,福州　350007
  • 收稿日期:2001-12-09 修回日期:2002-04-15 发布日期:2002-08-15
  • 通讯作者: 林美娟 E-mail:wangwei98@km169.net

Study on the PMMA Containing Samarium Prepared by the Non-Water Gel In Situ Polymerization

Lin Mei-Juan;Zhang Wen-Gong;Wang Wen   

  1. Institute of Polymer Science, Fujian Teachers University, Fuzhou　350007
  • Received:2001-12-09 Revised:2002-04-15 Published:2002-08-15
  • Contact: Lin Mei-Juan E-mail:wangwei98@km169.net

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摘要： 将无水三异丙氧基钐直接加入甲基丙烯酸甲酯（MMA）中会迅速形成凝胶,通过原位聚合可获得含钐的PMMA固体材料.研究表明,随钐含量的提高,含钐PMMA的结构逐渐由线型向交联网状体型转变,并使材料耐热性、耐溶剂性及贮能模量提高;ESEM表明,含钐PMMA呈交联网络蜂窝结构,未见聚集体,钐元素在体系中均匀分布;同时该材料呈现钐离子的特征荧光,在所测定的浓度范围内,荧光强度随钐含量增加而提高.

关键词: 非水凝胶原位聚合法, PMMA, 三异丙氧基钐

Abstract: It was reported that after the rapid formation of a gel by mixing of MMA and samarium triisopropoxide, the PMMA materials containing samarium were prepared by the in situ polymerization, the so called the non-water gel in situ polymerization. The effect of samarium triisopropoxide on the structure and properties of PMMA was studied. The results showed that by the increasing of samarium mass fraction the linear structure of PMMA containing samarium changed into crosslink network and resulted in improvement of the properties, such as resistance to heat and solvent, storage modulus. ESEM revealed the crosslink network structure of the PMMA material and no conglomerate; the samarium element was uniformly distributed. Moreover, the PMMA materials exhibited the characteristic fluorescence of samarium ion. In the concentration range studied, the fluorescent strength increased with the increasing of samarium mass fraction.

Key words: Non-water gel in situ polymerization, PMMA, Samarium triisopropoxide