首页> 外文期刊>Journal of Applied Polymer Science >Syntheses and properties of new poly(amide-imide)s based on 1,4-bis(4-aminophenoxy)naphthalene and various diimide-diacids
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Syntheses and properties of new poly(amide-imide)s based on 1,4-bis(4-aminophenoxy)naphthalene and various diimide-diacids

机译:基于1,4-双(4-氨基苯氧基)萘和各种二酰亚胺-二酸的新型聚(酰胺-酰亚胺)的合成与性能

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A series of new alternative poly(amide-imide)s (PAIs, IIIa-j) was synthesized by the direct polycondensation of 1,4-bis(4-aminophenoxy)naphthalene (1,4-BAPON) with various aromatic diimide-diacids. These polymers were obtained in quantitative yields with inherent viscosities of 0.71-1.03 dL/g. Except for IIIa, most of the polymers were soluble in aprotic polar solvents such as NMP, DMAc, DMF, and DMSO and could be solution-cast into transparent, flexible, and tough films. The glass transition temperatures of these PAIs were in the range of 235-280 degrees C. Thermogravimetric analyses established that these polymers were fairly stable up to 450 degrees C, and 10% weight; loss temperatures were recorded in the range of 520-569 degrees C under nitrogen and 506-566 degrees C under an air atmosphere, Compared with the PAIs with the 1,4-bis(4-aminophenoxy)benzene structure (series TV), the solubility of series III was better than that of series TV. Series III also exhibited lower crystallinity and better processability than those of series TV. (C) 2000 John Wiley & Sons, Inc. [References: 21]
机译:通过将1,4-双(4-氨基苯氧基)萘(1,4-BAPON)与各种芳族二酰亚胺-二酸直接缩聚合成了一系列新的替代聚(酰胺-酰亚胺)(PAI,IIIa-j) 。这些聚合物以定量收率获得,固有粘度为0.71-1.03 dL / g。除IIIa外,大多数聚合物可溶于非质子极性溶剂(如NMP,DMAc,DMF和DMSO)中,并可溶液浇铸成透明,柔性和坚韧的薄膜。这些PAI的玻璃化转变温度在235-280℃的范围内。热重分析确定这些聚合物在最高450℃和10%重量的条件下是相当稳定的。损失温度在氮气下记录为520-569℃,在大气中记录为506-566℃。与具有1,4-双(4-氨基苯氧基)苯结构的PAI相比,TV系列III系列的溶解度优于TV系列。 III系列还显示出比系列TV更低的结晶度和更好的可加工性。 (C)2000 John Wiley&Sons,Inc. [参考:21]

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