含异亚丙基聚亚胺醚酮的合成与性能  

SYNTHESIS AND PROPERTIES OF POLY (ARYLENE IMINO ETHER KETONE) CONTAINING ISOPROPYLIDENE GROUPS

作　　者：常冠军[1] 罗炫[1] 王强[2] 单雯雯[1] 张林[1] 林润雄[2] 

机构地区：[1]中国工程物理研究院激光聚变中心,绵阳621900 [2]橡塑材料与工程教育部重点实验室青岛科技大学,青岛266042

出　　处：《高分子学报》2008年第10期961-966,共6页Acta Polymerica Sinica

基　　金：高温高密度等离子体物理国防科技重点实验室基金(基金号9140C680603080);中国工程物理研究院科学技术发展基金(基金号200708006)资助项目

摘　　要：首先通过Friedel-Crafts酰基化反应得到1,4-双-(4′-溴苯酰基)苯,经两步合成芳香二胺2,2-双-[4-(4-氨基苯氧基)苯基]丙烷,以1,4-双-(4′-溴苯酰基)苯和2,2-双-[4-(4-氨基苯氧基)苯基]丙烷为单体,以三(二亚苄基丙酮)二钯为催化剂,1.1′-联萘-2.2′-二苯膦(BINAP)为配体,由钯催化的胺基化反应缩聚合成了高分子量含异亚丙基聚亚胺醚酮(pr-PIEK),Mn=5.15×104、Mw=1.26×105.其结构由红外、核磁氢谱和元素分析表征,表征结果与目标结构吻合良好.通过XRD、DSC和TG等对pr-PIEK的主要性能进行分析,结果表明pr-PIEK为无定形态,表现出良好的热稳定性(高的热分解温度TD>450℃)、力学性能(拉伸强度为72.76 MPa、拉伸模量为1013.63 MPa、断裂伸长率为10.32%)和较好的溶解性能,pr-PIEK在室温条件下可溶解在普通有机溶剂氯仿中,50℃溶于丙酮.Poly（arylene imino ether ketone） containing isopropylidene group （pr-PIEK） was synthesized by the condensation polymerization of 1,4-his- （4-bromobenzoyl） benzene and 2,2-bis [ 4- （4-aminophenoxy）-phenyl ]- propane via Palladium-catalyzed aryl amination reaction with high molecular weight, Mn = 5.15 ×10^4 , Mw= 1.26 ×10^5. The catalyst was tris（dibenzylideneacetone）dipalladium, and the catalyst ligand was BINAP. The monomers, 1,4-bis-（4-bromobenzoyl）benzene was synthesized by Friedel-Crafts benzoylation reaction, and 2, 2-bis [4-（4- aminophenoxy）phenyl]propane was obtained via two steps. The structure of pr-PIEK was characterized by means of FT-IR,1H-NMR spectroscopy and elemental analysis, and the testing results showed a good agreement with the proposed structure. XRD, DSC and TG measurements show that pr-PIEK possess amorphous nature, good thermal stability with high decomposition temperatures （To 〉 450℃）, mechanical properties （tensile intensity = 72.76 MPa, tensile modulus = 1013.63 MPa, rupture tensibility = 10.32% ） and good solubility, pr-PIEK can be dissolved in common organic solvent CHCl3 at room temperature and dissolved in acetone at 50℃.

关 键 词：聚亚胺醚酮 钯催化 2 2-双-[4-(4-氨基苯氧基)苯基]丙烷 异亚丙基 

分 类 号：O633.2[理学—高分子化学]