[1]王玉静,毛雪春,黄振钟,等.9,9-二[4-(4-胺基苯氧基)]苯基呫吨共缩聚改性聚对苯二甲酰对苯二胺[J].江西师范大学学报(自然科学版),2016,40(03):221-224.
 WANG Yujing,MAO Xuechun,HUANG Zhenzhong,et al.Copolymerization Modification of Poly(p-Phenylene-Terephthalaminde)with 9,9-Bis[4-(4-Aminophenoxy)phenyl]xanthene[J].,2016,40(03):221-224.
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9,9-二
[4-(4-胺基苯氧基)]苯基呫吨共缩聚改性聚对苯二甲酰对苯二胺
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《江西师范大学学报》(自然科学版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
40
期数:
2016年03期
页码:
221-224
栏目:
出版日期:
2016-07-01

文章信息/Info

Title:
Copolymerization Modification of Poly(p-Phenylene-Terephthalaminde)with 9,9-Bis
[4-(4-Aminophenoxy)phenyl]xanthene
作者:
王玉静毛雪春黄振钟盛寿日
江西师范大学化学化工学院,江西 南昌 330022
Author(s):
WANG YujingMAO XuechunHUANG ZhenzhongSHENG Shouri
Institutes of Chemistry and Chemical Engineering,Jiangxi Normal University,Nanchang Jiangxi 330022,China
关键词:
共聚酰胺 99-二[4-(4-胺基苯氧基)苯基]呫吨 对苯二胺 低温溶液缩聚
Keywords:
copolyamide 99-bis[4-(4-aminophenoxy)phenyl]xanthene 14-phenylenediamine solution polycondensation at low temperature
分类号:
O 633
文献标志码:
A
摘要:
以9,9-二
[4-(4-胺基苯氧基)苯基]呫吨(BAPX)为第3单体,将其与对苯二甲酰氯、对苯二胺(PPD)在N-甲基-2-吡咯烷酮(NMP)中进行低温溶液共缩聚反应,合成了一系列含呫吨结构的聚酰胺共聚物.研究了单体摩尔浓度、反应初始温度、第3单体用量对共聚反应的影响,并用IR、DSC、TGA等方法对共聚物进行了表征.结果表明:新型聚芳酰胺的特性粘度为1.85~3.20 dL·g-1,具有较高的玻璃化温度(305.6~325.7 ℃),在氮气氛中5%热失重温度为 524~544 ℃,800 ℃时的残炭率在52%以上.随着单体BAPX和PPD摩尔比的增加,共聚物的玻璃化温度逐渐降低,当BAPX和PPD摩尔比大于50/50时,共聚酰胺在常温下可溶于NMP、N,N-二甲基乙酰胺等极性有机溶剂中.
Abstract:
A series of aromatic copolyamides was synthesized by low temperature solution polycondensation of 9,9-bis
[4-(4-aminophenoxy)phenyl]xanthene(BAPX),terephthaloyl chloride and p-phenylenediamine(PPD)in N-methyl-2-pyrrolidinone.The effects of the molar concentration of monomer,reaction temperature and the molar ratio of BAPX to PPD on the copolycondensation reaction were investigated.The resulting copolyamides were characterized by IR,DSC and TGA,etc.The obtained copolyamides had high molecular weight with the inherent viscosity of 1.85-3.20 dL·g-1,glass transition temperature(Tg)in the range of 305.6-325.7 ℃ and weight loss temperature(5%)in the range of 524~544 ℃,and char yield over 52% at 800 ℃ under nitrogen.It has been found the Tg decreases with the increase in molar ratio of BAPX to PPD.When the molar ratio of BAPX to PPD is greater than 50/50,these polymers were readily soluble in polar solvents such as N,N-dimethylacetamide and N-methyl-2-pyrrolidinone at room temperature.

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备注/Memo

备注/Memo:
收稿日期:2016-02-23基金项目:国家自然科学基金(21064003,21464007,21564005),江西省高等学校科技落地计划(KJLD14022)和江西省教育厅科研基金(GJJ14236)资助项目.通信作者:黄振钟(1963-),男,江西赣州人,教授,主要从事高性能聚合物的研究.
更新日期/Last Update: 1900-01-01