Polyureas from diamines and carbon dioxide: synthesis, structures and properties
文献类型：期刊论文
| 作者 | Wu CY ; Wang JY ; Chang PJ ; Cheng HY ; Yu YC ; Wu ZJ ; Dong DW ; Zhao FY |
| 刊名 | physical chemistry chemical physics
 |
| 出版日期 | 2012 |
| 卷号 | 14期号:2页码:464-468 |
| 关键词 | SEGMENTED COPOLY(ETHER UREA)S UNIFORM HARD SEGMENTS N-PHOSPHONIUM SALTS MILD CONDITIONS COPOLYMERS MORPHOLOGY POLYDIMETHYLSILOXANE DISULFIDE PYRIDINES URETHANE |
| ISSN号 | 1463-9076 |
| 通讯作者 | zhao fy |
| 中文摘要 | polyureas were synthesized from diamines and carbon dioxide in the absence of any catalyst or solvent, analogous to the synthesis of urea from condensation of ammonia with carbon dioxide. the method used carbon dioxide as a carbonyl source to substitute highly toxic isocyanates for the synthesis of polyureas. ftir and dft calculations confirmed that strong bidentate hydrogen bonds were formed between urea motifs, and xrd patterns showed that the puas were highly crystalline and formed a network structure through hydrogen bonds, which served as physical cross-links. the long chain puas presented a microphase separated morphology as characterized by saxs and showed a high melting temperature above 200 degrees c. the puas showed high resistance to solvents and excellent thermal stability, which benefitted from their special network structures. the puas synthesized by this method are a new kind of functional material and could serve some areas where their analogues with similar functional groups could not be applied. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000298552800006 |
| 公开日期 | 2013-09-03 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48732]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wu CY,Wang JY,Chang PJ,et al. Polyureas from diamines and carbon dioxide: synthesis, structures and properties[J]. physical chemistry chemical physics,2012,14(2):464-468. |
| APA | Wu CY.,Wang JY.,Chang PJ.,Cheng HY.,Yu YC.,...&Zhao FY.(2012).Polyureas from diamines and carbon dioxide: synthesis, structures and properties.physical chemistry chemical physics,14(2),464-468. |
| MLA | Wu CY,et al."Polyureas from diamines and carbon dioxide: synthesis, structures and properties".physical chemistry chemical physics 14.2(2012):464-468. |
入库方式： OAI收割
来源：长春应用化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。