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新型含吡啶环和砜基结构聚苯并咪唑的合成与表征

Synthesis and Characterization of Novel Polybenzimidazole Containing Pyridine Ring and Sulfone Base

【作者】 刘陈海

【导师】 黄斌;

【作者基本信息】 江西师范大学 , 化学工程(专业学位), 2014, 硕士

【摘要】 聚苯并咪唑(PBI)材料作为一种新型耐高温材料,由于其显著的热稳定性能和质子导电性能而被广泛的应用于航空航天、军事和燃料电池等工业领域。特别是随着一些掺杂的PBI质子膜的报道,科研者们也越来越关注聚苯并咪唑的研究。本论文主要以4,4’-二氨基二苯砜为起始原料,经过五步反应合成3,3’,4,4’-四氨基二苯砜盐酸盐作为四氨单体,与多种不同的二元羧酸通过溶液法聚合合成一系列比例不同的聚苯并咪唑高分子材料。并通过红外、热分析、X衍射等一些测试手段对其进行了性能分析及结构表征。具体研究工作包括以下4个部分:1、论文的第四部分主要介绍了四氨单体和二酸单体的合成及结构表征。2、论文的第五部分主要介绍了以3,3’,4,4’-四氨基二苯砜盐酸盐(TADS·THS)与2,6-吡啶二羧酸(2,6-PDA)和5-磺酸钠间苯二甲酸(5-SSIPA)在氮气条件下,以多聚磷酸(PPA)为溶剂三元共聚合成一系列比例不同的磺化型聚苯并咪唑材料,并对其性能及结构进行了分析与表征。3、论文的第六部分主要介绍了以3,3’,4,4’-四氨基二苯砜盐酸盐(TADS·THS)与2,6-吡啶二羧酸(2,6-PDA)和二(4-羧基苯基)-3-三氟甲基苯胺(BCPTFMPA),通过改变二酸单体的摩尔比例,采用溶液法聚合,合成了一系列比例不同的含三氟甲基侧基结构的聚苯并咪唑材料,并对其性能及结构进行了分析与表征。4、论文的第七部分主要介绍了以3,3’,4,4’-四氨基二苯砜盐酸盐(TADS·THS)与2,6-吡啶二羧酸(2,6-PDA)和1,2-二(4-羧基苯氧基)苯(1,2-PDDBA),采用溶液法聚合合成了一系列不同摩尔比例的含苯氧基的聚苯并咪唑材料,并对其结构及性能进行了分析与表征。

【Abstract】 Polybenzimidazole (PBI) as a new type of high temperature resistant materials,due to its remarkable performance of thermal stability and proton conductivity, Whichis widely used in aerospace, military and industrial circle, such as fuel cells.Especially as some reports of the doped PBI company proton membrane, theresearchers pay more and more attention to the study of polybenzimidazole materialsThe thesis mainly use4,4’-diamino diphenyl sulfone as the starting material,After five steps, We get3,3’,4,4’-tetra-amino hydrochloride diphenyl sulfone whichas tetra-amino monomer, with a variety of dicarboxylic acid by solutionpolymerization to synthesize a series of different proportion polybenzimidazolepolymer materials. And through the FT-IR, thermal analysis, X-ray diffraction and soon some test methods on the performance analysis and structural characterization. Thespecific research work includes the following four parts:1. The fourth part of the paper mainly introduced the way of synthesistetra-amino monomer and diacid monomers and structural characterization oftetra-amino monomer and diacid monomers.2. The fifth part of paper mainly introduced which use3,3’,4,4’-tetra-aminohydrochloride diphenyl sulfone (TADS·THS) and2,6-pyridine dicarboxylic acid (2,6-PDA) and5-sulfonic acid sodium Isophthalic acid (5-SSIPA) under the condition ofnitrogen, as polyphosphoric acid (PPA) as the solvent and ternary copolymerization tosynthesize a series of different ratios of sulfonated polybenzimidazole material, andits performance and structure were analyzed and characterized.3.The sixth part of the paper mainly introduced as3,3’,4,4’-tetra-aminohydrochloride diphenyl sulfone (TADS·THS) and2,6-pyridine dicarboxylic acid (2,6-PDA) and di(4-carboxyl phenyl)-3-trifluoromethylaniline (BCPTFMPA), whichsynthesis of a series of different proportion of polybenzimidazole materials whichcontain the structure of trifluoromethyl pendant group by changing the mole ratio ofdiacid monomers and with solution polymerization, and its performance and structurewere analyzed and characterized at last.4. The seventh part of the paper mainly introduced that using the3,3’,4,4’-tetra-amino hydrochloride diphenyl sulfone (TADS· THS) and2,6-pyridinedicarboxylic acid (2,6-PDA) and1,2-di(4-carboxyl phenoxy) benzene (1,2-PDDBA) to synthesize a series of different molar ratio of phenoxy polybenzimidazole materialsby using solution polymerization, and last its structure and performance wereanalyzed and characterized.

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