以2,6-二甲基苯胺和苯甲醛为原料,经一步合成反应,制得了一种高纯二胺单体α,α-(3,5-二甲基-4-氨基)苯基甲烷(BADP),将其与4种商品化芳香二酐缩聚,制得了一系列主链含3,3',5,5'-四甲基和甲苯基结构的聚酰亚胺,特性黏度在0.57～0.84dL/g之间.该聚酰亚胺表现出优异的溶解性能和光学性能:室温下不仅可以溶于高沸点的NMP、DMAc、DMF和m-Cresol等溶剂中,还能溶于低沸点的CHCl3、CH2Cl2等溶剂中,而且大部分聚合物在这类溶剂中的溶解度可达10％(质量分数)以上；所制得的聚酰亚胺薄膜颜色浅、透明性高,截断波长在341～365nm之间,500nm处的透过率均超过85％.此外,该系列聚酰亚胺还表现出良好的热学性能和力学性能:玻璃化转变温度在333℃以上,空气和氮气中10％热失重在440℃和500℃以上；其薄膜的拉伸强度、断裂伸长率和起始模量分别在62～95MPa、8.4％～15.5％和2.2～3.5GPa之间.
参考文献
| [1] | M.Hasegawa;K.Horie .Photophysics,photochemistry,and optical properties of polyimides[J].Progress in Polymer Science,2001(2):259-335. |
| [2] | Mengxian Ding .Isomeric polyimides[J].Progress in Polymer Science,2007(6):623-668. |
| [3] | Li HS;Liu JG;Rui JM;Fan L;Yang SY .Synthesis and characterization of novel fluorinated aromatic polyimides derived from 1,1-bis(4-amino-3,5-dimethylphenyl)-1-(3,5-ditrif luoromethylphenyl)-2,2,2-trifluoroethane and various aromatic dianhydrides[J].Journal of Polymer Science, Part A. Polymer Chemistry,2006(8):2665-2674. |
| [4] | Chung CL;Yang CP;Hsiao SH .Organosoluble and colorless fluorinated poly(ether imide)s from 1,2-bis(3,4-dicarboxyphenoxy)benzene dianhydride and trifluoromethyl-substituted aromatic ris(ether amine)s[J].Journal of Polymer Science, Part A. Polymer Chemistry,2006(9):3092-3102. |
| [5] | Chin-Ping Yang;Yu-Yang Su;Shiou-Jung Wen .Highly optically transparent/low color polyimide films prepared from hydroquinone-or resorcinol-based bis(ether anhydride) and trifluoromethyl-containing bis(ether amine)s[J].Polymer: The International Journal for the Science and Technology of Polymers,2006(20):7021-7033. |
| [6] | Zhiming Qiu;Junhua Wang;Quanyuan Zhang .Synthesis and properties of soluble polyimides based on isomeric ditrifluoromethyl substituted 1,4-bis(4-aminophenoxy)benzene[J].Polymer: The International Journal for the Science and Technology of Polymers,2006(26):8444-8452. |
| [7] | Likhatchev D.;Tlenkopatchev M.;Vilar R.;Veragraziano R.;Alexandrova L. .SOLUBLE AROMATIC POLYIMIDES AND POLYAMIDES BASED ON 4,4'-DIAMINOTRIPHENYLMETHANE[J].Journal of Applied Polymer Science,1995(1):37-44. |
| [8] | Likhatchev D.;Tlenkopatchev M.;Martinezricha A. Veragraziano R.;Alexanrova L. .ONE-STEP SYNTHESIS OF AROMATIC POLYIMIDES BASED ON 4,4'-DIAMINOTRIPHENYLMETHANE[J].Journal of Applied Polymer Science,1996(5):815-818. |
| [9] | LEE DONG-HO .Preparation and Properties of Soluble Aromatic Polyetherimides Based on 2,2-Bis[4-(3,4-dicarboxyphenoxy)phenyl]hexafluoropropane Dianhydride[J].Journal of Applied Polymer Science,2000(2):249-257. |
| [10] | Yin DX;Li YF;Yang HX;Yang SY;Fan L;Liu JG .Synthesis and characterization of novel polyimides derived from 1,1-bis[4-(4 '-aminophenoxy)phenyl]-1-[3 '',5 ''-bis(trifluoromethyl)phenyl]-2,2,2-trifluoroethane[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(9):3119-3127. |
| [11] | Qian ZG.;Pang ZZ.;Li ZX.;He MH.;Liu JG.;Fan L.;Yang SY. .Photoimageable polyimides derived from alpha,alpha-(4-amino-3,5-dimethylphenyl) phenyl methane and aromatic dianhydride[J].Journal of Polymer Science, Part A. Polymer Chemistry,2002(17):3012-3020. |
| [12] | Z.G.Qian;Z.Y.Ge;M.H.He;J.G.Liu;L.Fan;S.Y.Yang;Z.Z.Pang .Synthesis and characterization of new inherent photoimageable polyimides based on fluorinated tetramethyl-substituted diphenylmethanediamines[J].Polymer: The International Journal for the Science and Technology of Polymers,2002(22):6057-6063. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%