75 research outputs found
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PEG−peptide conjugates
The remarkable diversity of the self-assembly behavior
of PEG−peptides is reviewed, including self-assemblies formed by PEG−peptides with β-sheet and α-helical (coiled-coil) peptide sequences. The modes of self-assembly in solution and in the solid state are discussed. Additionally, applications in bionanotechnology and synthetic materials science are summarized
Characterization of Cross-linking Structures in UV-cured Acrylic Ester Resin by MALDI-MS Combined with Supercritical Methanolysis
Strategies for the analysis of poly(methacrylic acid) by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry
We evaluated several aqueous-based sample preparation protocols for the analysis of poly(methacrylic acid) (PMAA) by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS). The sample contained a pentaerythritol tetra(3-mercaptopropionate) end-group, and was characterized in positive and negative ion modes using 2,5-dihydroxybenzoic acid (DHB) and 2,4,6-trihydroxyacetophenone (THAP) matrices. The major series observed were the [M + Na]+ species, in positive ion mode, and the [M − H]− species, in negative ion mode. The performance of DHB and THAP matrices was comparable in positive ion mode, but THAP outperformed DHB in negative ion mode. The use of ion-exchange beads (IXB) benefited the analysis, while the addition of sodium acetate (NaOAc) or trifluoroacetic acid (TFA) proved disadvantageous in positive ion mode
Characterization of the Cross-Linked Structure of Fumarate-Based Degradable Polymer Networks
Decoding Split and Pool Combinatorial Libraries with Electron-Transfer Dissociation Tandem Mass Spectrometry
Characterization of Network Structures in UV-Cured Acrylic Ester Resin by Pyrolysis−Gas Chromatography in the Presence of Organic Alkali
Gel Permeation Chromatography Characterization of the Chain Length Distributions in Thiol−Acrylate Photopolymer Networks
Incorporation of Chemoselective Functionalities into Peptoids via Solid-Phase Submonomer Synthesis
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