scholarly journals A self-healing and recyclable polyurethane-urea Diels–Alder adduct synthesized from carbon dioxide and furfuryl amine

2021 ◽  
Author(s):  
Peixuan Wu ◽  
Haiyang Cheng ◽  
Xinchao Wang ◽  
Ruhui Shi ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Diels Alder ◽  
Self Healing ◽  
Renewable Feedstocks ◽  
Green Route ◽  
Alder Adduct

A green route to synthesize a self-healing polyurethane-urea Diels–Alder adduct (PUUa-DA) using CO2 and furfuryl amine as renewable feedstocks is reported.

Fast‐reprocessing, Post‐adjustable, Self‐healing Covalent Adaptable Networks with Schiff base and Diels‐Alder Adduct

2022 ◽  
pp. 2100777
Author(s):  
Xiwei Xu ◽  
Songqi Ma ◽  
Sheng Wang ◽  
Binbo Wang ◽  
Hongzhi Feng ◽  
...  
Keyword(s):  
Schiff Base ◽  
Diels Alder ◽  
Self Healing ◽  
Alder Adduct

Facile fabrication of fast recyclable and multiple self-healing epoxy materials through diels-alder adduct cross-linker

2015 ◽  
Vol 53 (18) ◽  
pp. 2094-2103 ◽  
Author(s):  
Xiao Kuang ◽  
Guoming Liu ◽  
Xia Dong ◽  
Xianggui Liu ◽  
Jianjun Xu ◽  
...  
Keyword(s):  
Diels Alder ◽  
Self Healing ◽  
Facile Fabrication ◽  
Cross Linker ◽  
Alder Adduct

Effects of Diels-Alder Adduct and Lass Transition on the Repeated Self-Healing of Aliphatic Amine-Cured Epoxy Resin

2018 ◽  
Vol 303 (10) ◽  
pp. 1800284 ◽  
Author(s):  
Žiga Štirn ◽  
Aleš Ručigaj ◽  
József Karger-Kocsis ◽  
Matjaž Krajnc
Keyword(s):  
Epoxy Resin ◽  
Aliphatic Amine ◽  
Diels Alder ◽  
Self Healing ◽  
Alder Adduct

scholarly journals Analysis of the possibility and molecular mechanism of carbon dioxide consumption in the Diels-Alder processes

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Karolina Kula ◽  
Agnieszka Kącka-Zych ◽  
Agnieszka Łapczuk-Krygier ◽  
Radomir Jasiński
Keyword(s):  
Carbon Dioxide ◽  
Molecular Mechanism ◽  
Lewis Acids ◽  
Chemical Reactivity ◽  
Carbon Dioxide Concentration ◽  
Diels Alder ◽  
Wide Range ◽  
Bet Analysis ◽  
Earth’S Climate ◽  
Step Mechanism

Abstract The large and significant increase in carbon dioxide concentration in the Earth’s atmosphere is a serious problem for humanity. The amount of CO2 is increasing steadily which causes a harmful greenhouse effect that damages the Earth’s climate. Therefore, one of the current trends in modern chemistry and chemical technology are issues related to its utilization. This work includes the analysis of the possibility of chemical consumption of CO2 in Diels-Alder processes under non-catalytic and catalytic conditions after prior activation of the C=O bond. In addition to the obvious benefits associated with CO2 utilization, such processes open up the possibility of universal synthesis of a wide range of internal carboxylates. These studies have been performed in the framework of Molecular Electron Density Theory as a modern view of the chemical reactivity. It has been found, that explored DA reactions catalyzed by Lewis acids with the boron core, proceeds via unique stepwise mechanism with the zwitterionic intermediate. Bonding Evolution Theory (BET) analysis of the molecular mechanism associated with the DA reaction between cyclopentadiene and carbon dioxide indicates that it takes place thorough a two-stage one-step mechanism, which is initialized by formation of C–C single bond. In turn, the DA reaction between cyclopentadiene and carbon dioxide catalysed by BH3 extends in the environment of DCM, indicates that it takes place through a two-step mechanism. First path of catalysed DA reaction is characterized by 10 different phases, while the second by eight topologically different phases.

Self-Healing Hydrophobic POSS-functionalized Fluorinated Copolymer via RAFT Polymerization and dynamic Diels-Alder Reaction

2021 ◽  
Author(s):  
Siva Ponnupandian ◽  
Prantik Mondal ◽  
Thomas Becker ◽  
Richard Hoogenboom ◽  
Andrew B Lowe ◽  
...  
Keyword(s):  
Chain Transfer ◽  
Raft Polymerization ◽  
Alder Reaction ◽  
Diels Alder ◽  
Self Healing ◽  
Diels Alder Reaction ◽  
Reversible Addition

This investigation reports the preparation of a tailor-made copolymer of furfuryl methacrylate (FMA) and trifluoroethyl methacrylate (TFEMA) via reversible addition-fragmentation chain transfer (RAFT) polymerization. The furfuryl groups of the copolymer...

Self-healing poly(siloxane-urethane) elastomers with remoldability, shape memory and biocompatibility

2016 ◽  
Vol 7 (47) ◽  
pp. 7278-7286 ◽  
Author(s):  
Jian Zhao ◽  
Rui Xu ◽  
Gaoxing Luo ◽  
Jun Wu ◽  
Hesheng Xia
Keyword(s):  
Mechanical Property ◽  
Shape Memory ◽  
Microphase Separation ◽  
Diels Alder ◽  
Good Mechanical Property ◽  
Self Healing ◽  
Healing Efficiency ◽  
Good Biocompatibility

The poly(siloxane-urethane) elastomers with microphase separation structure and Diels–Alder bonds show high healing efficiency, good mechanical property and good biocompatibility.

Sign in / Sign up

Export Citation Format

Share Document