采用1,3-二(4-羟苯基)金刚烷(DPAD)与二氟二苯砜(DFDPS)、二氯二苯砜(DCDPS)的溶液缩聚反应合成了1,3-二(4-羟苯基)金刚烷基聚砜(ADPFS,ADPCS);通过DPAD、双酚A(BPA)、DFDPS的溶液缩聚反应合成了金刚烷-双酚A基共聚砜(ADPFAS).GPC测试结果表明,ADPFS和ADPCS的数均分子量分别为41000和6600,高活性的单体(DFDPS)有利于合成高分子量的聚砜.热分析结果表明,ADPFS与ADPFAS起始热分解温度高于410℃,与PSF起始热分解温度相近,但ADPFS的玻璃转化温度为235℃,ADPFAS的玻璃转化温度为210℃,显著高于商用双酚A型聚砜(PSF)的玻璃转化温度(186℃).
1,3-bis(4-hydroxyphenyl) adamantane-based polysuifones (ADPFS, ADPCS) were synthesized from 1,3-(4-hydroxyphenyl) adamantane(DPAD) and 4,4-difluorodiphenyl sulfone(DFDPS) or 4,4-dichlorodiphenyl sulfone (DCDPS) via solution polycondensation reaction. Adamantane-bisphenol A-based polysulfone (ADPFAS) was synthesized from DPAD, DFDPS and 2, 2-bis(4-hydroxyphenyl)propane (BPA) by the same method. GPC test shows that the number average molecular weight of ADPFS and ADPCS is 41000 and 6600, respectively. The highly active monomer (4,4-difluorodiphenyl sulfone) is beneficial to synthesis of adarnantane-based polysulfones with high molecular weigh. Thermal analysis reveals that the initial thermal decomposition temperature (410℃) of these adamantane-based polysulfones is similar to that of commercial polysulfones. However, the glass transition temperatures of ADPFS and ADPFAS are found to be 235℃ and 210℃, respectively, which are higher than that of the reported commercial polysulfone (186℃) significantly.
参考文献
| [1] | Hsiao SH.;Li CT. .Synthesis and characterization of new adamantane-based polyimides[J].Macromolecules,1998(21):7213-7217. |
| [2] | Chern YT.;Shiue HC. .LOW DIELECTRIC CONSTANTS OF SOLUBLE POLYIMIDES BASED ON ADAMANTANE[J].Macromolecules,1997(16):4646-4651. |
| [3] | 刘卅,郭建维.含金刚烷聚合物的研究进展[J].高分子材料科学与工程,2008(07):6-10. |
| [4] | 刘卅,郭建维.相转移催化法合成新型金刚烷基聚芳酯[J].化工学报,2008(06):1556-1564. |
| [5] | Su XM;Jing XL .Novel adamantane-containing epoxy resin[J].Journal of Applied Polymer Science,2007(2):737-742. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%