稀土透明树脂的制备及吸收和荧光性能

The Preparition of Tranparent Resins Containing Rare-Earth and Their Properties of Absorbance and Flourescence

采用稀土氧化物如Ｓｍ２Ｏ３、Ｅｕ２Ｏ３、Ｎｄ２Ｏ３与甲基丙烯酸（ＭＡ）制备了多种可聚合的甲基丙烯酸盐，然后和ＭＡ、苯乙烯共聚得到了多种厚度在１．５ｍｍ的透明树脂。稀土元素含量为０～３％ｗｔ，可见及近红外（１５００ｎｍ以下）的透光率在８０％以上；含Ｓｍ３＋或含Ｎｄ３＋的树脂的透过光谱上出现了Ｓｍ或Ｎｄ的吸收峰。含不同稀土的树脂在３８３ｎｍ或４２７ｎｍ附近有聚集苯环的很强的荧光发射，同时有对应于稀土元素的荧光峰出现。

Me(MA)3,such as Sm(MA)3,Eu(MA)3 and Nd(MA)3 which can be polymerized are made of Methacrylic acid and Sm2O3,Eu2O3 and Nd2O3,respectively.The bulk copolymers of Me(MA)3,MA and styrene which contain 0～3%wt rare earth are transparent,aud its light transmittance is above 80%.Several absorbed peaks of Sm3+ or Nd3+ are appeared at spectra of resins containing Sin or Nd. The fluorescence of the benzene rings is near 383nm or 427nm,and there also appeared Rare-Earth's fluorescence.