.png){kind=icon}
返回
Self-Healing Polyphosphonium Ionic Networks
.png){kind=icon}
OA
AI
DOI：10.1021/acs.macromol.7b00955.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Self-healing, ionically cross-linked networks were prepared from poly(acrylic acid) (PAA) and poly(triethyl(4-vinylbenzyl)phosphonium chloride) (P-Et-P), and their properties were studied. Three different ratios of PAA/P-Et-P were incorporated into the networks by varying the addition orders of the components. Swelling of the networks increased with increasing NaCl concentration when they were immersed in aqueous solution. All networks retained their structural integrity in 0.1 M NaCl. Studies of the rheological and tensile properties of the networks swelled in 0.1 M NaCl showed that PAA>P-Et-P exhibited high elongation and viscoelastic properties suitable for self-healing with a relaxation time of similar to 30 s, whereas the other networks exhibited predominantly elastic behavior. The moduli were similar to those of soft tissues. Self-healing of PAA>P-Et-P in 0.1 M NaCl was demonstrated through repair of a 0.5 mm diameter puncture in the material whereas healing was incomplete for the other networks and also for PAA>P-Et-P in the absence of NaCl. Healing after completely severing a tensile testing sample showed significant recovery of the modulus, strength, and elongation. The properties of these materials and their ability to self-heal in low and physiologically relevant salt concentrations make them promising candidates for a variety of applications, particularly in the biomedical area.
Keyword:
COMPACT POLYELECTROLYTE COMPLEXES
ANTIBACTERIAL ACTIVITY
POLYMERIC MATERIALS
LIQUIDS
ASSEMBLIES
STABILITY
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
5.2
论文数:
3.7W
被引数:
9.4W
机构
引用论文
Factors affecting the incidence of genotoxicity biomarkers in peripheral blood lymphocytes: impact on design of biomonitoring studies.png)
MutagenesisOAAI
MutagenesisIF0
OAAI分享收藏Ionically Cross-Linked Polymer Networks for the Multiple-Month Release of Small Molecules用于小分子多月释放的离子交联聚合物网络OAAI
OAAI分享收藏Synthesis, properties, and antibacterial activity of polyphosphonium semi-interpenetrating networks
PREAI
分享收藏
分享收藏Geographical and seasonal variation of harbour porpoise (Phocoena phocoena) presence in the German Baltic Sea revealed by passive acoustic monitoring被动声学监测揭示了德国波罗的海中港口海豚 (Phocoena phocoena) 的地理和季节变化
PREAI
分享收藏
查看更多内容