Materials Literature
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Abstract The mainstay of this description is a modeling of “controlled/living” chain growth crosslinking copolymerization (C/L CC) that is based on a simple equivalent kinetic scheme, resulting from assumptions consistent with an ideal C/L behavior. Analytical expressions of the double bond concentration according to…
The bioconjugation of proteins and peptides with synthetic polymers is a promising method for tailoring the chemical, biological, and physical properties of both the polymeric and protein-based components. Here, we describe macromolecular assemblies of polyethylene glycol-coiled-coil alternating multiblock polymers gu…
A method was developed for utilizing block copolymers that combine an acidic block, 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPSA), and an acrylate block, n -butyl, ethyl, or methyl acrylate, as templates for acid-doped conducting polymers such as polyaniline (PANI) or polypyrrole (PPY). PANI templated with dibl…
The recently synthesized diamondlike ${\text{BC}}_{5}$ $(d{\text{-BC}}_{5})$ was shown to own a few interesting physical properties, which are yet to be confirmed due to the difficulty in the synthesis of adequately sized single crystals. Our density functional calculations not only confirm $d{\text{-BC}}_{5}$ to be a…
Abstract Different formulations were designed to evaluate the effect of organically modified clay (DK4) on the combustion behavior of polystyrene (PS) containing an intumescent flame retardant, poly(4,4‐diaminodiphenyl methane spirocyclic pentaerythritol bisphosphonate) (PDSPB). The results of transmission electron mi…
Magnets made to order: Highly ordered multicomponent mesostructured alloys with controllable compositions have been synthesized [see TEM image and electron diffraction patterns (inset)]. The saturation magnetization of the alloys can be controlled by changing the ratio of metal components. New functions that are not f…
Wheat gluten is an amorphous storage protein. Trypsin hydrolysis of wheat gluten produced glutamine-rich peptides. Some peptides were able to self-assemble into fibrous structures extrinsic to native wheat gluten. The final material was an in situ formed peptide composite of highly ordered nanometer-sized fibrils and…
Polyvinylalcohol/graphite nanocomposites with graphite nanosheets have been prepared by a mechanical method based on grinding of graphite powder, under low energy pure shearing milling, using water or KOH as lubricant. The use of different lubricant concurs to obtain graphite sheets that differently disperse in hydrop…
Biological systems have a tendency to adsorb nonspecifically onto a solid substrate, thus reducing the efficacy of the interface being used in biorecognition. This nonspecific adsorption is a common problem in the development of biosensors as it typically reduces the efficacy of the sensor platform. In this manuscript…
Abstract The mechanism involved in the crystallization of bacterial polyhydroxybutyrate (PHB) and poly(hydroxybutyrate‐ co ‐hydroxyhexanoate) P(HB‐ co ‐HH) induced by orotic acid as a nucleant was investigated by using differential scanning calorimetry (DSC), gel permeation chromatography (GPC) and proton nuclear magn…
Foam and emulsion jamming at low shear rates is explained by considering the thinning dynamics of the transient films, formed between neighboring bubbles and drops. After thinning gradually to a critical thickness, these films undergo an instability transition, which leads to the formation of very thin "black films" p…
We revealed the aggravated instability of (0001)-oriented ZnO nanowires when they were deposited by a TiO(2) shell even under ambient conditions. Trace UV photons from daylight and moisture from air, which generally have negligible effects on "bare" ZnO nanowires, can obviously enhance their photocorrosion due to the…
Abstract In this study, ferulic acid was copolymerized with methacrylic acid to obtain a useful material with both antioxidant and antifungal properties. An ascorbic acid/hydrogen peroxide redox pair was used as a water‐soluble and biocompatible initiator system to prime the one‐pot polymerization reaction. The obtain…
Abstract The catalytic performance of the complexes [MoO 2 Cl 2 (L) 2 ] [L = N , N ‐dimethylformamide (dmf), N , N ‐dimethylacetamide (dma), N , N ‐dimethylpropionamide (dmpa), N , N ‐diethylformamide (def) and N , N ‐diphenylformamide (dpf)] was examined in the epoxidation of cis ‐cyclooctene with tert ‐butyl hydrope…
Abstract Novel deep‐red emissive poly(2,6‐BODIPY‐ethynylene)s bearing dodecyl side chains (polymers A , B , and C ) have been prepared by palladium‐catalyzed Sonogashira polymerization of 2,6‐diiodo‐functionalized BODIPY monomers with 2,6‐diethynyl‐functionalized BODIPY monomers. These polymers emit in the deep‐red re…
Abstract Biodegradable poly(3‐hydroxybutyrate) (PHB)/functionalized multi‐walled carbon nanotubes (f‐MWNTs) nanocomposite was prepared in this work by solution casting method at 2 wt% f‐MWNTs loading. Scanning electron microscopy and transmission electron microscopy observations indicate a homogeneous distribution of…
Abstract Dendrimers have been used as a vehicle to develop the antimicrobial properties of textile fabrics. We have taken advantage of the large number of functional groups present in the regular and highly branched three‐dimensional architecture of dendrimers. In this study, the poly(amidoamine) (PAMAM) G‐3 dendrimer…
Abstract An organic solvent soluble and high electrical conductivity, for example, 55.43 S/cm, polyaniline (PANI), was synthesized by a novel method. In this two steps process, a noncovalent approach was initially developed by functionalization of multiwalled carbon nanotubes (MWNTs) using calcium lignosulfonate (LsCa…
A simple and versatile process, based on a galvanic displacement reaction, is presented that provides controlled growth of different silver structures on silicon including thin films, nanocrystals, nanoparticles, and more complex structures termed nanodesert rose. Structure selection is achieved by choosing a suitable…
Abstract Tetra‐ n ‐butylammonium (TBA) salts of the dititanium sandwich‐type 19‐tungstodiarsenate(III) [Ti 2 (OH) 2 As 2 W 19 O 67 (H 2 O)] 8– ( 1 ) revealed a unique catalytic performance in the selective oxidation of organic compounds with aqueous hydrogen peroxide. The selectivity of alkene oxidation strongly depen…