以生物基二聚二胺,BPADA,m-PDA为单体的PI的合成  

Sythesis of polyimide from bio-based dimer fatty diamine,BPADA and m-PDA

作　　者：刘扬[1,2] 张德文[1] 刘敬峰[2] 阎敬灵[2] 王震[2] 

机构地区：[1]长春工业大学化学与生命科学学院,吉林省长春市130012 [2]中国科学院长春应用化学研究所高分子复合材料工程实验室,吉林省长春市130022

出　　处：《合成树脂及塑料》2015年第3期26-29,共4页China Synthetic Resin and Plastics

摘　　要：以双酚A型二醚二酐、生物基二聚二胺、间苯二胺为原料,间甲酚为溶剂,采用传统的一步法合成了一系列生物基共聚及均聚聚酰亚胺,利用傅里叶变换红外光谱仪、凝胶渗透色谱仪、差示扫描量热仪、热重分析仪等表征了生物基聚酰亚胺的结构并分析了其热性能和力学性能。结果表明：所制聚酰亚胺的玻璃化转变温度为26~215℃,质量损失5%时的温度为436~512℃;随着二聚二胺用量的增加,聚酰亚胺的断裂拉伸应变显著提高,二聚二胺摩尔分数为50%时,断裂拉伸应变达507%。A series of bio-based homopolymerized and copolymerized polyimides were prepared via conventional one-step method with m-cresol as solvent, bisphenol A diether dianhydride, bio-based dimer fatty diamine and m-phenylenediamine as raw materials. The structure of the bio-based polyimide was characterized and the thermal property and mechanical properties were studied by means of Fourier transform infrared spectroscopy（FTIR）, gel permeation chromatography（GPC）, differential scanning calorimetry（DSC）,thermogravimetric analyzer（TG）, etc. The results indicate that the glass transition temperature of the resultant polyimide is 26~215 ℃ and the temperature with mass loss of 5% is 436-512 ℃.The tensile strain at break of the polyimide is increased remarkably with the increase of the dimer fatty diamine dosage. When the molar fraction of the dimer fatty diamine is 50%, the tensile strain at break reaches 507%.

关 键 词：聚酰亚胺 生物基 二聚二胺 热性能 力学性能 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]