以1,2-双(4’-羧基苯基)邻碳癸硼烷和乙二醇为原料,合成出含碳癸硼烷结构的新型聚酯(简称CBR-PET),采用 FT-IR、1 H NMR 和 GPC 对其进行了表征.通过中子屏蔽实验发现 CBR-PET 具有显著的热中子屏蔽性能,随着样品中含硼量增加,热中子屏蔽性能增强；利用热分析技术研究了在Ar气氛下从室温~800℃的CBR-PET的热解行为,其起始分解温度约380℃,在800℃的残炭率高达72．9％.
A new carborane-containing polyester (abbreviated as CBR-PET)was prepared by the polycondensati-on reaction of 1 ,2-bis(p-carboxyphenyl)-o-carborane with ethylene glycol.The structures and molecular weight were confirmed by FT-IR,1 H NMR and gel permeation chromatography (GPC).The results of neutron shiel-ding experiments showed that the CBR-PET performed good slow neutron shielding ability which was enhanced with the boron contents increasing.The thermal characterizations of the CBR-PET in argon were investigated by using thermogravimetry analysis (TG)from room temperature to 800 ℃,its initial decomposition temperature was 380 ℃ and its char yields at 800 ℃ was 72.9%.
参考文献
| [1] | 熊俊,宋涛.防辐射材料的研究进展[J].中国组织工程研究与临床康复,2010(12):2209-2212. |
| [2] | 黄益平,冯惠生,梁璐,徐姣,张卫江.含碳化硼的吸收和屏蔽中子辐射涂料的研究[J].天津大学学报,2011(07):639-644. |
| [3] | Wang Zhilun;Dou Haiying.Neutron radiation protectin[J].China Personal Protection Equipment,2006(05):26-29. |
| [4] | 张启戎,唐常良,陈晓媛,马华东,韩玉省.中子屏蔽复合材料板材研制及性能研究[J].化学工程师,2009(09):67-70,73. |
| [5] | 梁威,杨青芳,马爱洁,薛丹,祖恩锋.防辐射纤维及材料的研究进展[J].玻璃钢/复合材料,2005(05):51-55. |
| [6] | Guo Peng;Dong Limin;Wang Chen.Preparation of boron carbide/ultra-high molecular weighttpolyethylene composites for neutron shielding[J].Journal of Materials Engineering,2010(z2):337-341. |
| [7] | M. M. Abdel-Aziz;S. E. Gwaily;A. S. Makarious;A. El-Sayed Abdo .Ethylene-propylene diene rubber/low density polyethylene/boron carbide composites as neutron shields[J].Polymer Degradation and Stability,1995(2):235-240. |
| [8] | 王学晨,牛建津,印瑞斌.聚丙烯与碳化硼共混体系的纺丝与性能研究[J].天津纺织工学院学报,2000(02):12-14. |
| [9] | 赵娟,黄鹏程,陈功,詹茂盛.碳十硼烷及其衍生物的反应性及应用[J].化学进展,2012(04):556-567. |
| [10] | Duan Shaojie.The macroscopic experiments of neutron science[M].Beijing:National Defense Industry Press,2008:10-12. |
| [11] | Safronov AV;Dolgushin FM;Petrovskii PV;Chizhevsky IT .Low-temperature "1,2 -> 1,7" isomerization of sterically crowded icosahedral closo-((2,3,8-eta(3)):(5,6-eta(2))-norbornadien-2-yl)rhodacarborane via the formation of a pseudocloso intermediate. Molecular structures of [3,3-((2,3,8-eta(3)):(5,6-eta(2)[J].Organometallics,2005(12):2964-2970. |
| [12] | Green J;Mayes N;Cohen M S .Carborane polymers.I. polyesters[J].Journal of Polymer Science Part A:Gen-eral Papers,1964,2(07):3113-3133. |
| [13] | Bekasova N I;Komarova N G .Effect of carborane groups and the structure of their surrounding organic residues on the reactivity of monomers and properties of polymers[J].Russian Chemical Reviews,1992,61(03):352-362. |
| [14] | Alexander R P;Killingworth et al.polyesters of or-ganoboron diols with organoboron dicarboxylic acids or acid halides[P].US:3258479,1966-6-28. |
| [15] | Li Zhefu;Xue Xiangxin;Jiang Tao .Neutron shielding properties of boron-containing ore and epoxy composites[J].Journal of Functional Materials,2010,41(11):1892-1895. |
| [16] | 费柳月,蒋平平,邓建明.邻苯二甲酸二元醇聚酯合成、表征与热解动力学[J].江南大学学报(自然科学版),2006(06):725-729. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%