Tag: M.W=250-300

Xia, Shan published the artcileA flexible, adhesive and self-healable hydrogel-based wearable strain sensor for human motion and physiological signal monitoring, Safety of Dodecyl 2-methylacrylate, the main research area is adhesive selfhealable hydrogel wearable strain sensor motion.

The advent of hydrogel-based strain sensors has attracted immense research interest in artificial intelligence, wearable devices, and health-monitoring systems. However, the integration of the synergistic characteristics of good mech. properties, self-adhesiveness, self-healing capability and high strain sensitivity for fabricating hydrogel-based strain sensors is still a challenge. Here, a multifunctional conductive hydrogel composed of a polyacrylamide (PAAm)/chitosan (CS) hybrid network is fabricated for wearable strain sensors. The PAAm network is cross-linked by hydrophobic associations, and the CS network is ionically cross-linked by carboxyl-functionalized multi-walled carbon nanotubes (c-MWCNTs). These two networks are further interlocked by phys. entanglement and hydrogen bond interactions. The obtained hydrogels exhibit excellent flexibility, puncture resistance and self-healing capability because of the efficient energy dissipation of the dynamic crosslinking network. Moreover, the hydrogels exhibit self-adhesive behavior on various materials, including polytetrafluoroethylene, wood, glass, aluminum, rubber and skin. Notably, the hydrogels can be applied as soft human-motion sensors for real-time and accurate detection of both large-scale and small human activities, including joint motions, speaking, breathing, and even subtle blood pulsation. Therefore, it is anticipated that the flexible, self-adhesive, self-healing and conductive hydrogel-based strain sensor will have promising applications in artificial intelligence, soft robots, biomimetic prostheses, and personal health care.

Journal of Materials Chemistry B: Materials for Biology and Medicine published new progress about Adhesives. 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

Gong, Xuanang published the artcileEthyl cellulose based self-healing adhesives synthesized via RAFT and aromatic schiff-base chemistry, COA of Formula: C16H30O2, the main research area is ethyl cellulose grafting vanillin lauryl methacrylate; Adhesives; Ethyl cellulose; Schiff base; Self-Healing; Vanillin.

In this work, reversible addition-fragmentation chain transfer (RAFT) polymerization and Schiff base chem. was combined to fabricate self-healing adhesives. An esterification reaction was first performed to prepare Et cellulose based macroinitiators. Then, a “”grafting from”” RAFT of vanillin methacrylate and lauryl methacrylate was used to obtain graft copolymers. DSC result showed that the glass transition temperature was manipulated via changing the ratio of vanillin and fatty acids moieties. NMR spectrum anal. demonstrated the presence of aldehyde groups, which were available for the dynamic crosslinking to generate a network as self-healing adhesives. The adhesive test showed that the shear strength could reach 0.81 MPa with a self-healing efficiency of 98.7%. The bottlebrush structures of copolymers and reversibility of Schiff base chem. might collaboratively contribute to the high self-healing efficiency. This study provides a facile way to fabricate high-performance self-healing adhesives from Et cellulose and renewable resources.

Carbohydrate Polymers published new progress about Adhesives. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, COA of Formula: C16H30O2.

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

Boscan, Freddy published the artcileIncorporation of Very Insoluble Monomers in Waterborne Coatings, Application In Synthesis of 142-90-5, the main research area is waterborne coating insoluble monomer.

The benefits of polymerizing very insoluble monomers in aqueous media, avoiding the use of energy-intensive procedures, by implementing two novel synthesis techniques based on the emulsifier combination in emulsion polymerization and on miniemulsification by phase inversion temperature are investigated. The performance of standalone polymers consisting of monomers, namely lauryl methacrylate, isobornyl acrylate, and 1H,1H,2H,2H-perfluorodecyl acrylate, and of formulated binders with these monomers incorporated either through blending or in situ polymerization, is evaluated with special emphasis on their water-barrier properties (e.g., uptake, whitening, immersion, and vapor resistance) and on their chem. resistance. The performance of the standalone polymers is found to be similar to that of polymers prepared by high-shear miniemulsion polymerization, while the performance of the formulated binders is generally superior to a com. coating formulation based on a binder recommended for water resistance.

Macromolecular Materials and Engineering published new progress about Adhesives. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Application In Synthesis of 142-90-5.

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

Christov, Latchezar published the artcileExistence and stability of azeotropes in the terminal model of multicomponent copolymerization, Application of Dodecyl 2-methylacrylate, the main research area is azeotrope terminal model multicomponent copolymerization algorithm.

A simple numerical algorithm for calculating the azeotropic composition of multicomponent copolymers (if such a composition exists) is presented. The method is based on regular Markov chains in the frame of the terminal model of irreversible chain propagation in chain-growth copolymerization It requires as few calculations as just solving two systems of linear equations. The stability of the azeotropic composition in a batch reactor is discussed. A numerical procedure that can distinguish between a stable and an unstable azeotropic composition is proposed. 2021 Society of Industrial Chem.

Polymer International published new progress about Algorithm. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Application of Dodecyl 2-methylacrylate.

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

Cornel, Erik J. published the artcileTime-resolved small-angle neutron scattering studies of the thermally-induced exchange of copolymer chains between spherical diblock copolymer nanoparticles prepared via polymerization-induced self-assembly, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is spherical diblock copolymer micelle polymerization induced selfassembly.

Sterically-stabilized diblock copolymer nanoparticles (a.k.a. micelles) are prepared directly in non-polar media via polymerization-induced self-assembly (PISA). More specifically, a poly(lauryl methacrylate) chain transfer agent is chain-extended via reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization of Me methacrylate (MMA) to form sterically-stabilized spheres at 20% weight/weight solids in n-dodecane at 90°. Both fully hydrogenous (PLMA39-PMMA55 and PLMA39-PMMA94) and core-deuterated (PLMA39-d8PMMA57 and PLMA39-d8PMMA96) spherical nanoparticles with mean core diameters of approx. 20 nm were prepared using this protocol. After diluting each dispersion in turn to 1.0% weight/weight with n-dodecane, small-angle X-ray scattering studies confirmed essentially no change in spherical nanoparticle diameter after thermal annealing at 150°. Time-resolved small angle neutron scattering was used to examine whether copolymer chain exchange occurs between such nanoparticles at elevated temperatures Copolymer chain exchange for a binary mixture of PLMA39-PMMA55 and PLMA39-d8PMMA57 nanoparticles produced hybrid (mixed) cores containing both PMMA55 and d8PMMA57 blocks within 3 min at 150°. In contrast, a binary mixture of PLMA39-PMMA94 and PLMA39-d8PMMA96 nanoparticles required 8 min at this temperature before no further reduction in neutron scattering intensity could be observed These observations suggest that the rate of copolymer chain exchange depends on the d.p. of the core-forming block. Relatively slow copolymer chain exchange was also observed at 80°, which is below the Tg of the core-forming PMMA block as determined by DSC studies. These observations confirm rapid exchange of individual copolymer chains between sterically-stabilized nanoparticles at elevated temperature The implications of these findings are briefly discussed in the context of PISA, which is a powerful technique for the synthesis of sterically-stabilized nanoparticles.

Soft Matter published new progress about Annealing. 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

Scheiger, Johannes M. published the artcileInherently UV Photodegradable Poly(methacrylate) Gels, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is acrylic polymer photodegradable gel.

Organogels (hydrophobic polymer gels) are soft materials based on polymeric networks swollen in organic solvents. They are hydrophobic and possess a high content of solvent and low surface adhesion, rendering them interesting in applications such as encapsulants, drug delivery, actuators, slippery surfaces (self-cleaning, anti-waxing, anti-bacterial), or for oil-water separation To design functional organogels, strategies to control their shape and surface structure are required. Herein, the inherent UV photodegradability of poly(methacrylate) organogels is reported. No addnl. photosensitizers are required to efficiently degrade organogels on the minute scale. A low UV absorbance and a high swelling ability of the solvent infusing the organogel are found to be beneficial for fast photodegradation, which is expected to be transferrable to other gel photochem. Organogel arrays, films, and structured organogel surfaces are prepared, and their extraction ability and slippery properties are examined Films of inherently photodegradable organogels on copper circuit boards serve as the first ever pos. gel photoresist. Spatially photodegraded organogel films protect or reveal copper surfaces against an etchant (FeCl3 aqueous).

Advanced Functional Materials published new progress about Actuators. 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

Porras, Julian D. published the artcileDevelopment of an Adsorbent for Bisphenol A Based on a Polymer Grafted from Microcrystalline Cellulose, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is bisphenol polymer grafted microcrystalline cellulose adsorbent development.

We aimed to develop a sustainable adsorbent for bisphenol A (BPA), an endocrine disruptor that seriously threatens human health. First, microcrystalline cellulose (MCC) was reacted with 2-bromoisobutyrylbromide to obtain a surface initiator (SI) for the grafting of polystyrene (PS), poly(lauryl methacrylate) (PLMA), and poly(N,N-dimethylaminoethyl methacrylate) (PDM) through ARGET-ATRP. These polymers may have favorably interacted with BPA, which led to its removal. SIs were characterized by FTIR and XPS to corroborate the grafting of 2-bromoisobutyryl and determine its abundance. X-ray diffraction anal. indicated retained crystal morphol. with decreased MCC crystallinity. FTIR, thermogravimetric, and elemental analyses confirmed the grafting of MCC with polymers and revealed their composition PS and PLMA had a minor effect on the crystallinity and morphol. of MCC microfibers, whereas grafting PDM decreased the crystallinity of cellulose and the particle size. MCC grafted with polymers were tested as adsorbents of BPA by measuring the equilibrium uptake and removal through column filtration. PDM was found to endow cellulose with superior capacity of removing BPA, which was enhanced with increased amount of grafted polymer. A comparison of MCC grafted with PDM with activated carbon as adsorbents of BPA suggested the superior performance of the developed materials based on the largest maximum uptake.

Water, Air, & Soil Pollution published new progress about Acylation. 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

Huang, Hsiu-Ying published the artcileEco-Friendly, High-Loading Luminescent Solar Concentrators with Concurrently Enhanced Optical Density and Quantum Yields While Without Sacrificing Edge-Emission Efficiency, Name: Dodecyl 2-methylacrylate, the main research area is luminescent solar concentrator optical density quantum yield.

A luminescent solar concentrator (LSC) consists of loaded luminophores and a waveguide that can concentrate direct and diffuse sunlight, which is a crucial ingredient for developing solar glasses. In general, the loading concentration in LSCs is strongly restricted (typically <1 weight%) to mitigate concentration-induced quenching (CIQ), reabsorption losses, and aggregation-induced scattering (AIS). However, this will induce transmission losses in particular for thin-film LSCs. To address all aforementioned issues, large-Stoke-shift LSCs with different loadings are simply prepared based on thiolated gold nanoclusters (GSH-AuNCs) dispersed in the polyvinylpyrrolidone (PVP) matrix. In contrast to conventional luminophores with a severe CIQ effect, photoluminescence quantum yields (PL-QYs) can be significantly enhanced up to ≈25% (from 0.5 to 1%) even under high loading of ≈26 weight%. Such PL-QY enhancement is attributed to the synergistic effects of the suppression of non-radiative relaxation and enhancement of radiative decay processes due to surface ligand-matrix coordination. In addition, our high-loading LSCs also exhibit excellent optical quality and film uniformity without introducing noticeable AIS effects. Thanks to those unique properties, eco-friendly LSCs with high optical d. can still hold a high edge-emission efficiency of ≈70% due to minimal reabsorption and scattering losses, yielding an external quantum efficiency of ≈15% at the wavelength of 400 nm. Solar RRL published new progress about Composites. 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

Alberg, Irina published the artcileEffect of Core-Crosslinking on Protein Corona Formation on Polymeric Micelles, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is crosslinked polyhydroxypropylmethacrylamide preparation nanoparticle blood protein zeta potential; asymmetrical flow field-flow fractionation; core-crosslinking; polymer micelles; protein corona.

Most nanomaterials acquire a protein corona upon contact with biol. fluids. The magnitude of this effect is strongly dependent both on surface and structure of the nanoparticle. To define the contribution of the internal nanoparticle structure, protein corona formation of block copolymer micelles with poly(N-2-hydroxypropylmethacrylamide) (pHPMA) as hydrophilic shell, which are crosslinked-or not-in the hydrophobic core is comparatively analyzed. Both types of micelles are incubated with human blood plasma and separated by asym. flow field-flow fractionation (AF4). Their size is determined by dynamic light scattering and proteins within the micellar fraction are characterized by gel electrophoresis and quantified by liquid chromatog.-high-resolution mass spectrometry-based label-free quant. proteomics. The analyses reveal only very low amounts of plasma proteins associated with the micelles. Notably, no significant enrichment of plasma proteins is detectable for core-crosslinked micelles, while noncrosslinked micelles show a significant enrichment of plasma proteins, indicative of protein corona formation. The results indicate that preventing the reorganization of micelles (equilibrium with unimers) by core-crosslinking is crucial to reduce the interaction with plasma proteins.

Macromolecular Bioscience published new progress about Aminolysis. 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

Guo, Fenghao published the artcileFunctional monodisperse microspheres fabricated by solvothermal precipitation co-polymerization, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is polymer microsphere solvothermal precipitation copolymerization.

Simultaneous achievement in high solid content and high microsphere yield is deemed a challenge in the fabrication of monodisperse microspheres by precipitation polymerization We herein demonstrate that micro-sized monodisperse poly(methacrylic monomer-divinylbenzene) microspheres containing epoxy, lauyl, carboxyl and hydroxyl functions can be fabricated by solvothermal precipitation co-polymerization at 20% (mass) monomer loading with over 94% microsphere yield. The morphol. and porosity of the obtained particles can be readily tuned by cosolvent-acetonitrile binary solvents. Addition of a small amount of cosolvent that has similar solubility parameter to that of the functional monomer can significantly improve the monodispersity of the obtained microspheres. When THF was used as the co-solvent, the surface area of the highly porous microspheres achieved higher than 400 m2·g1. Solvothermal precipitation co-polymerization can be expected in scale-up fabrication of various monodisperse functional microspheres free of any surfactant and additive.

Chinese Journal of Chemical Engineering published new progress about Adsorption. 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