Category: 142-90-5

Zhang, Xinyue published the artcileBridging experiments and theory: isolating the effects of metal-ligand interactions on viscoelasticity of reversible polymer networks, SDS of cas: 142-90-5, the main research area is metal coordinated AAEMA lauryl methacrylate copolymer viscoelastic property.

Polymer networks cross-linked by reversible metal-ligand interactions possess versatile mech. properties achieved simply by varying the metal species and quantity. Although prior experiments have revealed the dependence of the network’s viscoelastic behavior on the dynamics of metal-ligand interaction, a theor. framework with quant. relations that would enable efficient material design, is still lacking. One major challenge is isolating the effect of metal-ligand interaction from other factors in the polymer matrix. To address this challenge, we designed a linear precursor free from solvents, chain entanglements and polymer-metal phase separation to ensure that relaxation of the network is mainly governed by the dissociation and association of the metal-ligand cross-links. The rheol. behavior of the networks was thoroughly characterized regarding the changes in cross-link d., binding stoichiometry and coordination stability, allowing quant. comparison between exptl. results and the sticky Rouse model. Through this process, we noticed that the presence of reversible cross-links increases the network modulus at high frequency compared to the linear polymer, and that the effective metal-ligand dissociation time increases dramatically with increasing the cross-link d. Informed by these findings, we modified the expression of the sticky Rouse model. For the polymer in which the metal center and ligands bond in a paired association, the relaxation follows our enhanced sticky Rouse model. For the polymer in which each reversible cross-link consists of multiple metal centers and ligands, the relaxation timescale is significantly extended due to greater restriction on the polymer chains. This systematic study bridges experiments and theory, providing deeper understanding of the mech. properties of metallopolymers and facilitating material design.

Soft Matter published new progress about Crosslink density. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, SDS of cas: 142-90-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Jiang, Yu published the artcileDiels-Alder Polymer Networks with Temperature-Reversible Cross-Linking-Induced Emission, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is Diels Alder polymer network temperature crosslinking emission; Diels-Alder reaction; cross-linking-induced emission; polymers; reversible photoluminescence; temperature response.

A novel synthetic strategy gives reversible crosslinked polymeric materials with tunable fluorescence properties. Dimaleimide-substituted tetraphenylethene (TPE-2MI), which is non-emissive owing to the photo-induced electron transfer (PET) between maleimide (MI) and tetraphenylethene (TPE) groups, was used to crosslink random copolymers of Me (MM), decyl (DM) or lauryl (LM) methacrylate with furfuryl methacrylate (FM). The mixture of copolymer and TPE-2MI in DMF showed reversible fluorescence with “”on/off”” behavior depending on the Diels-Alder (DA)/retro-DA process, which is easily adjusted by temperature At high temperatures, the retro-DA reaction is dominant, and the fluorescence is quenched by the photo-induced electron transfer (PET) mechanism. In contrast, at low temperatures, the emission recovers as the DA reaction takes over. A transparent PMFM/TPE-2MI polymer film was prepared which shows an accurate response to the external temperature and exhibited tunable fluorescent “”turn on/off”” behavior. These results suggest the possible application in areas including information security and transmission. An example of invisible/visible writing is given.

Angewandte Chemie, International Edition published new progress about Crosslink density. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Recommanded Product: Dodecyl 2-methylacrylate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Laukkanen, Olli-Ville published the artcilePhotorheology of UV-crosslinkable polymer solutions, HPLC of Formula: 142-90-5, the main research area is anthracene lauryl methacrylate crosslinkable polymer solution photorheol.

Anthracene moieties are known to undergo photo-induced cycloaddition under UV illumination and can therefore be utilized in preparing photodynamic materials. In this study, the authors investigate the viscoelastic properties of anthracene-containing random and triblock copolymer solutions during in-situ UV irradiation Among other findings, the authors observe that the crosslinking of the anthracene-containing polymer solutions can also take place in dark.

Annual Transactions – Nordic Rheology Society published new progress about Crosslink density. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, HPLC of Formula: 142-90-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Jing, Chu published the artcileThermal decomposition of methacrylate polymers containing tert-butoxycarbonyl moiety, Name: Dodecyl 2-methylacrylate, the main research area is tert butoxycarbonyloxy ethyl methacrylate polymer thermal degradation.

In organic synthesis and polymer materials chem., a tert-butoxycarbonyl (BOC) group is often used as one of tools for the protection of functional groups. In this study, we carried out radical polymerization of 2-(tert-butoxycarbonyloxy)ethyl methacrylate (BHEMA) and copolymerizations of BHEMA with Me methacrylate (MMA), Bu methacrylate (nBMA), iso-Bu methacrylate (iBMA), tert-Bu methacrylate (tBMA), dodecyl methacrylate (DMA), α-methylstyrene (AMS), and limonene (Lim) as the 1,1-disubstituted ethylene monomers and investigated the thermal decomposition behavior of the obtained polymers. On the basis of the results of thermogravimetric (TG) anal. in nitrogen at the heating rate of 10 °C/min, it was revealed that the deprotection of the BOC group in the polymer side chains occurred at ca. 200 °C accompanying the quant. elimination of isobutene and carbon dioxide, independent of the structures of the repeating units. The following main-chain decomposition of the residual copolymers resulted in a small amount of residue less than 1% at 500 °C. Poly(2-hydroxyethyl methacrylate) was synthesized via the deprotection of the BOC group of PBHEMA.

Polymer Degradation and Stability published new progress about Activation energy. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Name: Dodecyl 2-methylacrylate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Wang, Yi published the artcilePhotoinduced atom transfer radical polymerization in ab initio emulsion, SDS of cas: 142-90-5, the main research area is photoinduced atom transfer radical polymerization ab initio emulsion.

Atom transfer radical polymerization (ATRP) performed in ab initio emulsion provides access to well-defined polymers in a low-cost, eco-friendly environment. Herein, photoinduced ab initio emulsion ATRP of various (meth)acrylate monomers is reported. The polymerization rate increased with the solubility of the monomer in water. Well-controlled (co)polymerizations were achieved under violet light and low catalyst loading, even in an open-to-air system through enzymic degassing.

Polymer published new progress about Aspergillus niger. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, SDS of cas: 142-90-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Gao, Shishuai published the artcileFabrication of lignin based renewable dynamic networks and its applications as self-healing, antifungal and conductive adhesives, Category: esters-buliding-blocks, the main research area is lignin based renewable dynamic network selfhealing antifungal conductive adhesive.

The preparation of dynamic networks from lignin with multipurpose and multifunctional practical applications is highly desirable but still challenging. In this study, the combination of a “”grafting from”” reversible addition-fragmentation chain transfer (RAFT) polymerization and dynamic chem. was utilized to synthesize lignin based dynamic networks. Vanillin, a derived chem. from lignin, was used as a building block to realize the structural reorganization of lignin via RAFT polymerization, together with fatty acid derivative as the comonomer. NMR anal. confirmed the expected structures. It was demonstrated that the physicochem. properties of grafted lignin were adjustable depending on polymerization reaction conditions. Due to the presence of aldehyde groups from vanillin moiety, a dynamic network was produced by using diamines as crosslinkers. The mech. properties were also tunable via controlling the structure of crosslinkers. The crosslinked lignin-based dynamic networks exhibited various interesting properties, such as recyclability and UV-adsorption ability. In addition, it could be used as self-healing, antifungal and conductive adhesives. The shear strength after first time self-healing could reach 2.9 MPa, which was 83.1% of the pristine adhesion. This damage and repair process could be carried out at least four times under relatively low temperature (80°C) and pressure (1.0 MPa). More importantly, antifungal activity was observed for the self-healing adhesive, which might enlarge its applications. Addnl., after the addition of carbon nanotubes, the generated conductive adhesive was weldable without compromising its conductivity This study has demonstrated the potential of lignin to synthesize high value-added materials, which could be appealing to both biorefinery and materials society.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Aspergillus niger. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Li, Chunching published the artcileBuoyancy-Driven Gradients for Biomaterial Fabrication and Tissue Engineering, Synthetic Route of 142-90-5, the main research area is osteochondral tissue engineering biomaterial polymer hydrogel buoyancy; biomaterials; buoyancy; gradients; osteochondral; tissue engineering.

The controlled fabrication of gradient materials is becoming increasingly important as the next generation of tissue engineering seeks to produce inhomogeneous constructs with physiol. complexity. Current strategies for fabricating gradient materials can require highly specialized materials or equipment and cannot be generally applied to the wide range of systems used for tissue engineering. Here, the fundamental phys. principle of buoyancy is exploited as a generalized approach for generating materials bearing well-defined compositional, mech., or biochem. gradients. Gradient formation is demonstrated across a range of different materials (e.g., polymers and hydrogels) and cargos (e.g., liposomes, nanoparticles, extracellular vesicles, macromols., and small mols.). As well as providing versatility, this buoyancy-driven gradient approach also offers speed (<1 min) and simplicity (a single injection) using standard laboratory apparatus Moreover, this technique is readily applied to a major target in complex tissue engineering: the osteochondral interface. A bone morphogenetic protein 2 gradient, presented across a gelatin methacryloyl hydrogel laden with human mesenchymal stem cells, is used to locally stimulate osteogenesis and mineralization in order to produce integrated osteochondral tissue constructs. The versatility and accessibility of this fabrication platform should ensure widespread applicability and provide opportunities to generate other gradient materials or interfacial tissues. Advanced Materials (Weinheim, Germany) published new progress about Biomineralization. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Synthetic Route of 142-90-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

do Nascimento, Fernando H. published the artcileFast construction of polymer monolithic columns inside fluorinated ethylene propylene (FEP) tubes for separation of proteins by reversed-phase liquid chromatography, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is polymer monolithic column fluorinated ethylene propylene protein RPHPLC; Egg white; Fluoropolymer tubes; Liquid chromatography; Monolithic columns; Photografting; Urine.

This paper describes the preparation of polymer monolithic columns in the confines of fluorinated ethylene propylene (FEP) tubes. These tubes are cheap, chem. stable, and widely used in flow anal. laboratories UV-initiated grafting with 5% benzophenone in methanol for 1 h activated the internal surface walls, thus enabling the further covalent binding of ethylene glycol dimethacrylate (EDMA) from a 15% solution in methanol, also via photografting. Both steps used 254 nm radiation under a potency of 120 mJ cm2. ATR-FTIR measurements revealed carbonyl, alkyl and vinyl groups in the functionalized FEP. The d. of vinyl groups was high enough to firmly attach a poly(lauryl methacrylate-coethylene glycol dimethacrylate) monolith in 120 × 1.57 mm internal diameter tubes, prepared via photopolymerization The total preparation lasts <2-h. The columns were permeable, (1.58 ± 0.06) x 10-13 m2, providing reproducible chromatog. parameters of retention times, retention factor, selectivity, and resolution The monoliths were stable at flow rates of 500μL min-1, collapsing only at flow rates >700μL min-1, a condition that increased the backpressure over 1000 psi (experiments at the room temperature). The separation of proteins by reversed-phase liquid chromatog. demonstrated the efficiency of the columns. Determination of egg white proteins (ovalbumin and lysozyme) and myoglobin in spiked urine proved the applicability to the anal. of real samples.

Talanta published new progress about Egg white, poultry. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Recommanded Product: Dodecyl 2-methylacrylate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Zhao, Shuyue published the artcileScreening and Matching Amphiphilic Cationic Polymers for Efficient Antibiosis, Safety of Dodecyl 2-methylacrylate, the main research area is antibacterial cationic copolymer quaternary ammonium salt chain length PEGylation.

The amphiphilic cationic polymers that mimic antimicrobial peptides have received increasing attention due to their excellent antibacterial activity. However, the relationship between the structure of cationic polymers and its antibacterial effect remains unclear. In our current work, a series of PEG blocked amphiphilic cationic polymers composed of hydrophobic alkyl-modified and quaternary ammonium salt (QAS) moieties have been prepared The structure-antibacterial activity relationship of these cationic polymers was investigated against E. coli and S. aureus, including PEGylation, random structure, mol. weights, and the content and lengths of the hydrophobic alkyl side chains. The results indicated that PEGylated random amphiphilic cationic copolymer (mPB35/T57) showed stronger antibacterial activity and better biocompatibility than the random copolymer without PEG (PB33/T56). Furthermore, mPB35/T57 with appropriate mole fraction of alkyl side chains (falkyl = 0.38), d.p. (DP = 92), and four-carbon hydrophobic alkyl moieties was found to have the optimal structure that revealed the best antibacterial activities against both E. coli (MIC = 8μg/mL, selectivity > 250) and S. aureus (MIC = 4μg/mL, selectivity > 500). More importantly, mPB35/T57 could effectively eradicate E. coli biofilms by killing the bacteria embedded in the biofilms. Therefore, the structure of mPB35/T57 provided valuable information for improving the antibacterial activity of cationic polymers.

Biomacromolecules published new progress about Antibiofilm agents. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Safety of Dodecyl 2-methylacrylate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Lee, Joonbum published the artcileCopolymerization of zwitterionic carboxybetaine and various hydrophobic groups to optimize antifouling and biocompatible properties, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is zwitterionic carboxybetaine hydrophobic group copolymerization antifouling biocompatible property optimization.

Zwitterionic polymers including carboxybetaine derivatives are widely utilized as biocompatible antifouling materials in the way of copolymerization for the enhanced functionality. The aim of this study was to optimize the structure of copolymer in order to present a versatile antifouling property against both polar and nonpolar foulants as well as biocompatibility. Copolymers of zwitterionic carboxybetaine and several hydrophobic monomers were synthesized and coated on the glass substrate by a simple dip-coating method. The antifouling performance against polar and nonpolar foulants, adhesion property of cells and platelets on the coated surfaces were investigated. The optimal copolymer-coated surface with low fouling and fewer thrombotic events was shown to be a carboxybetaine copolymer in combination with the trimethylsiloxy group. This result suggests that elaborate copolymerization makes it possible to create a versatile antifouling surface using a simple and practical method without compromising the functionality of each monomer.

Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands) published new progress about Antifouling agents. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Recommanded Product: Dodecyl 2-methylacrylate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics