摘要
本文首先制备了丙烯酸钡和丙烯酸铅。用红外、核磁及元素分析对它们进行了表征,然后将它们与苯乙烯及丙烯酸进行自由基共聚,得到含钡和/或含铅聚合物,研究了共聚物吸收X-射线的能力与金属含量的关系,发现吸收本领随金属盐含量的增加而增加。并且,含钡和铅两种金属的聚合物比只含相同量单种金属的聚合物能更好地吸收X-射线。和不含金属的聚合物相比,含金属的聚合物的力学强度有较大改善,还用红外、抽提等手段对聚合物进行了表征,对聚合物接受长期X-射线后的宏观变化进行了研究。
Barium diacrylatc (BaAc_2) and lead diacrylate (PbAc_2) were prepared and then copolymerized with styrene and acrylic acid to get Ba-and/or Pb-containing polymers. The relatioship between X-Ray absorbability of the content of metal salt (s) in the copolymers was investigated. An interesting resut is that the copolymer containing both Ba and Pb absorbs X-ray better than the copolymers containing only Ba or Pb of the same amount. Mechanical properties of the metal cotaining copolymers are much improved compared with the copolymers without metal. The copolymers were also charaterized by IR spectra and extraction.
出处
《功能高分子学报》
CAS
CSCD
1990年第2期155-160,共6页
Journal of Functional Polymers
基金
国家自然科学基金
