0014-3057/$ see front matter 2008 Elsevier Ltd doi:10.1016/j.eurpolymj.2008.07.014 * Corresponding authors. Tel.: +1 865 5763820; (G. Cheng), tel.: +1 865 5744974; fax: +1 865 57415 E-mail addresses: [email protected] (G. Chen (K. Hong). The conformation of newly synthesized amphiphilic poly(methoxyoligo(ethylene oxide) norbornenyl esters) macro-homopolymers in dilute solutions of toluene-d8 and ...

For a group of nonionic surfactants with polar head groups synthesized by the copolymerization ethylene oxide and carbon dioxide, potential for their application in foam flotation microplastic particles was investigated. Their performance compared to conventional that correlated adsorption behavior at water–air surface through maximum-bubble-pressure technique. The carbonate content surfactant ...

The Carboni-Lindsey reaction between tetrazines and strained unsaturated hydrocarbons has in recent years become a useful tool bioorthogonal chemistry for labelling biomolecules vitro vivo. Here, we report computational studies on the mechanism of Diels-Alder/Retro-Diels-Alder commercially available tetrazine norbornene. Isomerism with norbornene-amide relevant applications bioconjugation chemi...

Abstract The discovery that polyethylene oxide promotes ionic conductivity led to the development of solid polymer electrolytes. However, their is severely reduced by crystallinity. Here, statistical copolymerization used design macromolecular architectures where crystallinity disrupted a minimal amount non-ethylene comonomer units. Using Flory exclusion model, we demonstrate polymers containin...

2,2′-Bifuran-5,5′-dicarboxylic acid (BFDCA), a highly promising biobased diacid monomer, was used to modify poly(ethylene terephthalate) (PET) obtain copolyesters with increased biocarbon content and improved properties compared PET. Antimony-catalyzed copolymerization of the bifuran terephthalate 2-hydroxyethyl esters afford PETBF copolymers. When against PET, these random copolymers 5, 10, or...

A mathematical model for the crosslinking copolymerization of a vinyl and divinyl monomer was developed and applied to the case of methyl methacrylate and ethylene glycol dimethacrylate batch polymerization. Model results compare favorably to the experimental findings of Li and Hamielec for the system investigated. The model presented utilizes the numerical fractionation technique and is capabl...

L-3,4-Dihydroxyphenylalanine (DOPA) is an unusual amino acid found in mussel adhesive proteins (MAPs) that is believed to lend adhesive characteristics to these proteins. Most previous efforts to incorporate DOPA into hydrogels have utilized oxidative cross-linking, which is hypothesized to reduce the adhesive properties of DOPA and requires reagents that are harmful to biological tissues. In t...

A series of titanium and zirconium complexes with ligands based on di-isopropyl phosphorus-phenylamine and their derivatives were synthesized and characterized. These catalysts were utilized to catalyze the copolymerization of ethylene with N-acetyl-O-(dec-9-enyl)-L-tyrosine ethyl ester with high catalytic activity of 6.63 × 104 g P (mol Ti)−1 h−1 after activation by methylaluminoxane (MAO). Th...

Pd complexes with diimine ligands promoted the controlled cyclopolymerization of 1,6-dienes and 1,6,11-trienes to afford polymers containing 1,2-trans-cyclopentane groups with well-regulated stereochemistry. The polymerization proceeded with quantitative cyclization of the monomer, even under bulk conditions or in copolymerization reactions with ethylene and aolefins. The polymerization of mono...