Covalent thermosets generally exhibit robust mechanical properties, while they are fragile and lack the ability to be reprocessed or recycled. Herein, a new strategy of incorporating noncovalent bonds into main-chains is developed construct tough multi-recyclable cross-linked supramolecular polyureas (CSPU), which prepared via copolymerization diisocyanate monomers, noncovalently bonded diamine monomers linked by quadruple hydrogen bonds, covalent diamine/triamine monomers. The CSPU...

Hot melt adhesives are widely applied owing to their solvent-free nature. Developing robust and multi-reusable hot without harsh bonding conditions remains a great challenge. Herein, we develop novel strategy of incorporating flexible side chains into the network highly noncovalently cross-linked construct super strong supramolecular epoxy (SEA). The SEA was prepared via polycondensation diglycidyl ether bisphenol A with O-(2-ureido-4[1H]-pyrimidinone)-O′-(2-aminopropyl)polypropylene glycol...

Abstract Closed-loop chemical recycling provides a solution to the end-of-use problem of synthetic polymers. However, it remains major challenge design dynamic bonds, capable effective bonding and reversible cleaving, for preparing chemically recyclable cross-linked Herein, we report maleic acid tertiary amide bond based upon amidation reaction between anhydrides secondary amines. This allows construction polymer networks with tailorable robust mechanical properties, covering strong...

Ionic conductors that combine transparency, elasticity, and underwater self-healing capability are highly desirable because of their applications in biosensors, touch panels, marine ships, so forth. Polymer materials based on ion–dipole interactions can meet these requirements. However, a key trade-off is relatively weak mechanical properties the plasticizing effect. Here, we designed synthesized new ionic liquid building block to enable design multivalent interaction. The resultant polymer...

Abstract A new method of supramolecular polymerization at the water–oil interface is developed. As a demonstration, an oil‐soluble supramonomer containing two thiol end groups linked by ureidopyrimidinone units and water‐soluble monomer bearing maleimide are employed. Supramolecular interfacial can be implemented thiol–maleimide click reaction water–chloroform to obtain polymeric films. The glass transition temperature such polymers well‐tuned simply changing time temperature. It highly...

This paper presents a precise localization algorithm for vehicles in 3D urban environment with only one 2D LIDAR and odometry information. A novel idea of synthetic is proposed to solve the problem on virtual plane. Monte Carlo Localization scheme adopted vehicle position estimation, based measurements The accuracy robustness are demonstrated by performing real time 1.5 km driving test around NUS campus area.

Highly efficient recycling of carbon fiber reinforced polymer composites into monomers and fibers is a formidable challenge. Herein, we present closed-loop approach for using reversible amidation chemistry, which enables the complete recovery intact pure monomers. The network, synthesized by between macromonomer linear polyethyleneimine bifunctional maleic anhydride cross-linker, serves as matrix construction with exceptional mechanical properties, thermal stability solvent resistance....

Open AccessCCS ChemistryCOMMUNICATIONS17 Jan 2024A Fluorinated, Ion-Conducting and Adaptive Supramolecular Polymer Protective Layer for Stabilizing Lithium Metal Anodes Tao Chen†, Bo Qin†, Yuncong Liu, Zhekai Jin, Haiping Wu, Chao Wang Xi Zhang Chen† *Corresponding authors: E-mail Address: [email protected] Institute of Smart City Intelligent Transportation, Southwest Jiaotong University, Chengdu 610032 Key Lab Organic Optoelectronics Molecular Engineering, Department Chemistry, Tsinghua...

This paper describes an autonomous vehicle testbed that aims at providing the first- and last- mile transportation services. The mainly operates in a crowded urban environment whose features can be extracted priori. To ensure system is economically feasible, we take minimalistic approach exploit prior knowledge of availability existing infrastructure such as cellular networks traffic cameras. We present three main components system: pedestrian detection, localization (even presence tall...

One of the most prominent features on an urban road is curb, which defines boundary a surface. An intersection junction two or more roads, appearing where no curb exists. The combination and their idiosyncrasies carry significant information about network that can be exploited to improve vehicle's localization. This paper introduces Monte Carlo Localization (MCL) method using curb-intersection roads. We propose novel idea "Virtual LIDAR" get measurement models for these features. Under MCL...

Shape memory polymers (SMPs) have attracted a wide range of interest owing to their technological impact. It remains great challenge construct SMPs with both excellent shape recoverability and durability satisfactory reprocessability. Herein, by incorporating low-content noncovalently bonded linkers into the covalent network SMP, supramolecular polyurea (SMSP) reprocessability properties has been successfully constructed. The SMSP was endowed remarkable performance solvent resistance its...

Abstract A new method of supramolecular polymerization at the water–oil interface is developed. As a demonstration, an oil‐soluble supramonomer containing two thiol end groups linked by ureidopyrimidinone units and water‐soluble monomer bearing maleimide are employed. Supramolecular interfacial can be implemented thiol–maleimide click reaction water–chloroform to obtain polymeric films. The glass transition temperature such polymers well‐tuned simply changing time temperature. It highly...

A new method of supramolecular emulsion interfacial polymerization is developed, which can be used to fabricate polymeric nanospheres. We designed a water-soluble monomer containing two maleimide end groups, acting as both building block and surfactant, an oil-soluble supramonomer bearing thiol groups connected by quadruple hydrogen bonds. With the assist ultrasonication, hollow nanospheres controllably prepared thiol-maleimide reaction monomers at interface, exhibit good stability dynamic...

Abstract Supramolecular adhesives have gained broad attention from both scientific and industrial aspects by virtue of their dynamic reversible bonding properties. Although considerable achievements been made in the exploration noncovalent interactions for supramolecular adhesives, developing high‐performance has remained a great challenge. Recently, combining well‐developed with rational design strategies, strong functional constructed. From this perspective, latest developments notions...

The integration of dynamic covalent bonds into polymer design offers transformative potential for sustainable materials. Herein, we report a catalyst‐free caprolactam‐urea (CAU) bond that enables the construction poly(caprolactam‐ureas) (PCAU) networks with dual mechanical and chemical recyclability. resulting PCAU exhibit remarkable robustness, solvent resistance, hydrolytic stability. Owing to rapid exchange CAU bonds, are successfully mechanically recycled via hot‐pressing over multiple...

We have fabricated a series of supramolecular polymers with tailor-made structures and properties through interfacial polymerization miscible monomers. Compared homogeneous solution polymerization, is advantageous for fabricating higher molecular weights. Their weights are attributed to the effective concentration monomers at interface than in solutions diffusion-limited characteristic polymerization. Moreover, glass transition temperatures well tuned by tuning monomer copolymerization. It...

This letter describes a new method for fabricating supramolecular microgels from supramonomers. To this end, we designed and assembled supramonomers with one acrylate moiety on each end the basis of noncovalent host-guest interactions, which could be utilized as cross-linker. Then were fabricated through copolymerization N-isopropylacrylamide (NIPAm). The not only showed temperature-responsive properties expected conventional PNIPAm-based but also exhibited stimuli-responsive degradable...

Supramolecular polymers, originating from the interplay between polymer science and supramolecular chemistry, have attracted increasing interest in scientific industrial communities. To date, most polymers are constructed homogeneous solutions. polymerization normally takes place spontaneously solutions, thus creating challenges fabricating a controlled manner. By combining interfacial polymerization, can be transferred solutions to interfaces, which allows for production of polymers. In...