• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IUPAC 10th International conference on novel materials and their synthesis: Book of abstracts >NEW BIO-POLYIMIDES FROM MICROBIAL AROMATICS
【24h】

NEW BIO-POLYIMIDES FROM MICROBIAL AROMATICS

机译：微生物芳香族新的生物聚酰亚胺

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Bioplastics originated from microbial molecules are indispensable for establishment of green sustainable society. Conventional bio-based polymers such as poly(lactic acid)s have a worse hand comparing to commodity-type plastics in terms of the balance of cost with performance in materials. Development of high-performance bioplastics should be effectual on overcoming this problem. We have studied high-performance polyarylates derived from biological phenlic acid but an ester bond pyrolysis limited the thermomechanical performances. Here, we produced an aromatic monoamine 4-aminocinnamic acid from glucose by using metabolically engineered bacterium. Quantitative photodimerization of 4-aminocinnamic acid generated diacid- and diamino-biomonomers, both of which had functionalized a rigid α-truxillate structure and then were used to synthesize series of aromatic polyamides (Figure 1). These aromatic polyamides and polyimides were processed into highly-transparent plastic films with thermal stability and mechanical performance as high as super engineering plastic films, in spite of amorphous structures. Combined photolysis and hydrolysis efficiently degraded them into the monomers, which we recover and re-polymerize into the polyamides. Besides we synthesized another structure of aromatic diamides from 4-aminocinnamic acid, that is, stilbene diamide, which can also be a wonderful monomer for high mechanical performance polyamides and polyimides.
机译：源于微生物分子的生物塑料对于建立绿色可持续发展社会是必不可少的。就成本与材料性能之间的平衡而言，常规的生物基聚合物（如聚乳酸）与商品型塑料相比，手感更差。高性能生物塑料的开发应能有效克服这一问题。我们已经研究了衍生自生物酚酸的高性能聚芳酯，但是酯键热解限制了其热机械性能。在这里，我们通过使用代谢工程菌从葡萄糖中生产了芳香族单胺4-氨基肉桂酸。 4-氨基肉桂酸的定量光二聚化生成了二酸和二氨基生物单体，两者均具有刚性的α-truxillate结构功能，然后用于合成一系列芳香族聚酰胺（图1）。尽管无定形结构，这些芳族聚酰胺和聚酰亚胺仍被加工成具有高热稳定性和机械性能的高透明塑料膜，其性能与超级工程塑料膜一样高。光解和水解的结合有效地将它们降解为单体，我们将其回收并重新聚合为聚酰胺。此外，我们还从4-氨基肉桂酸合成了另一种芳香族二酰胺结构，即1,2-二苯乙烯二酰胺。对于高机械性能的聚酰胺和聚酰亚胺来说，二苯乙烯二酰胺也是一种出色的单体。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号