Results 181 to 190 of about 129,275 (339)

Probing Metal Tip‐Induced Bond Weakening of a Reactive Alkyne Center Aligned via a Rigid Triphenylmethane‐Based Tripod on Au(111) by TERS and DFT

open access: yesJournal of Raman Spectroscopy, EarlyView.
We investigate tip‐induced bond weakening of a single alkyne center immobilized and aligned upright on Au(111) using a rigid triphenylmethane‐based tripod. By varying the tip–molecule distance, we observe shifts in the ≡C–H and –C≡C– vibrational bands via ultrahigh vacuum low‐temperature tip‐enhanced Raman scattering (TERS).
Gang Li   +12 more
wiley   +1 more source

Obtaining Curvature‐Based HLD Parameters for Single Ionic Surfactants via Small Angle X‐Ray Scattering (SAXS)

open access: yesJournal of Surfactants and Detergents, EarlyView.
ABSTRACT The hydrophilic–lipophilic difference (HLD) for ionic surfactant microemulsions (μEs) can be interpreted as the curvature normalized by the tail length parameter (L), if it is corrected by a factor “bi”, bi·HLD = HLDcurv = HLDbi = bi·ln(S) – kbi·EACN + Ccbi, with bi and kbi representing the curvature sensitivity to changes in salinity (S, g ...
Edgar Acosta   +2 more
wiley   +1 more source

Physico‐Chemical Understanding of Plasticizers Interaction with P(VDF‐TrFE‐CFE) Electroactive Polymer

open access: yesMacromolecular Materials and Engineering, EarlyView.
This study explores the effects of DNOP plasticizer on P(VDF‐TrFE‐CFE) terpolymers, revealing a strong synergy between chemical structure and physical properties. High TrFE bringing natural flexibility and CFE enhancing the plasticizer retention through theorized halogen bonds, ultra‐soft, crack‐free films of high permittivity and softness are ...
Colin Lesenne   +2 more
wiley   +1 more source

Chewable Soft Gelatin Capsules: Design and Formulation Strategies for a Patient‐Preferred Dosage Alternative

open access: yesMacromolecular Materials and Engineering, EarlyView.
Chewable softgels are a patient‐preferred alternative to conventional oral forms, offering pleasant taste, fast onset, and suitability for children or patients with swallowing difficulties. However, they present relevant challenges in their formulation: the shell must balance chewability, machinability, and stability, while the fill must mask the ...
Almudena Naharros‐Molinero   +3 more
wiley   +1 more source

Bio‐Based Epoxy Resins from Estragole: Achieving High Glass Transition Temperatures Comparable to DGEBA and Simultaneously Low Viscosities

open access: yesMacromolecular Materials and Engineering, EarlyView.
Two novel bio‐based epoxy monomers, diglycidyl‐4‐allylphenol (DG‐4A) and triglycidyl‐diallylphenol (TG‐DA), derived from estragole (92% and 72% bio‐content), were synthesized and cured with isophorone diamin (IPDA) and 4,4´‐diaminodiphenyl sulfone (DDS). The resins show high Tgs, with DG‐4A reaching and TG‐DA exceeding DGEBA‐based systems. These resins
Florian Bauer   +4 more
wiley   +1 more source

Sulfonium‐Based Antimicrobial Block Copolymers: Influence of Hydrophobicity on Biological Activity and Antibiotic Synergy

open access: yesMacromolecular Rapid Communications, EarlyView.
Sulfonium‐based antimicrobial block copolymers combine an active cationic hydrophobic block with a neutral hydrophilic block to improve cytocompatibility. The hydrophobicity of the sulfonium‐based block controls the activity against S. aureus and E coli.
Sidra Kanwal   +5 more
wiley   +1 more source

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