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Results: 20162
Zirconium complexes of bipyrrolidine derived salan ligands for the isoselective polymerisation of rac-lactide

Herein we report the synthesis and characterisation of a series of Zr(iv) 2,2'-bipyrrolidine-salan derived complexes and their exploitation for the ring opening polymerisation of rac-lactide to afford highly isotactically...

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Interview with Gwen P. Howell
Gwen P. Howell
Jan 01, 0001
Interview with Gwen P. Howell, member of the South Carolina Mothers Association.
Published by: Winthrop University
Zirconium complexes of bipyrrolidine derived salan ligands for the isoselective polymerisation of rac-lactide

Herein we report the synthesis and characterisation of a series of Zr(iv) 2,2'-bipyrrolidine-salan derived complexes and their exploitation for the ring opening polymerisation of rac-lactide to afford highly isotactically...

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Water desalination concept using an ionic rectifier based on a polymer of intrinsic microporosity (PIM)

We describe ion current rectification using a Polymer of Intrinsic Microporosity (PIM) based on Tröger's base (PIM-EA-TB). When deposited asymmetrically over one (or more) 20 μm diameter hole(s) in 6 μm thick poly(ethylene...

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PSK Method for Solving Mixed and Type-4 Intuitionistic Fuzzy Solid Transportation Problems
P. Kumar
Apr 01, 2019
In this article, the author categorises the solid transportation problem (STP) under uncertain environments. He formulates the mixed and fully intuitionistic fuzzy solid transportation problems (FIFSTPs) and utilizes the...
Water desalination concept using an ionic rectifier based on a polymer of intrinsic microporosity (PIM)

We describe ion current rectification using a Polymer of Intrinsic Microporosity (PIM) based on Tröger's base (PIM-EA-TB). When deposited asymmetrically over one (or more) 20 μm diameter hole(s) in 6 μm thick poly(ethylene...

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Making the cut

A series of monopyrrolidine metal complexes have been prepared with the aim of elucidating structure-to-activity relationships for the ROP of lactide. Complexes of Li(I), Mg(II), Zn(II) and Zr(IV) were synthesised and fully...

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Aminopiperidine based complexes for lactide polymerisation
Herein we report the synthesis and characterisation of a series of salalen and salan ligands derived from 2-(aminomethyl)piperidine. Depending on the choice of starting salicylaldehyde, a bicyclic salan type ligand (1-3H2) or...
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Making the cut

A series of monopyrrolidine metal complexes have been prepared with the aim of elucidating structure-to-activity relationships for the ROP of lactide. Complexes of Li(I), Mg(II), Zn(II) and Zr(IV) were synthesised and fully...

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Fuel cell anode catalyst performance can be stabilized with a molecularly rigid film of polymers of intrinsic microporosity (PIM)

There remains a major materials challenge in maintaining the performance of platinum (Pt) anode catalysts in fuel cells due to corrosion and blocking of active sites. Herein, we report a new materials strategy for improving...

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Intrinsically porous polymer protects catalytic gold particles for enzymeless glucose oxidation

The enzymeless glucose oxidation process readily occurs on nano-gold electrocatalyst at pH7, but it is highly susceptible to poisoning (competitive binding), for example from protein or chloride. Is it shown here that gold...

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Diabetes Prediction Using Enhanced SVM and Deep Neural Network Learning Techniques: An Algorithmic Approach for Early Screening of Diabetes
Diabetes, caused by the rise in level of glucose in blood, has many latest devices to identify from blood samples. Diabetes, when unnoticed, may bring many serious diseases like heart attack, kidney disease. In this way, there...
Aminopiperidine based complexes for lactide polymerisation
Herein we report the synthesis and characterisation of a series of salalen and salan ligands derived from 2-(aminomethyl)piperidine. Depending on the choice of starting salicylaldehyde, a bicyclic salan type ligand (1-3H2) or...
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High density heterogenisation of molecular electrocatalysts in a rigid intrinsically microporous polymer host

A water-insoluble Polymer with Intrinsic Microporosity (or PIM, here for the particular case of the Tröger Base system PIM-EA-TB, BET area ca. 103 m2 -1g) is demonstrated to act as a rigid...

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ECL sensor for selective determination of citrate ions as a prostate cancer biomarker using polymer of intrinsic microporosity-1 nanoparticles/nitrogen-doped carbon quantum dots

Urine citrate analysis is relevant in the screening and monitoring of patients with prostate cancer and calcium nephrolithiasis. A sensitive, fast, easy, and low-maintenance electrochemiluminescence (ECL) method with...

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The Synthetic Chemistry of Carboxyalkyl-P, P-Diphenyl Phosphines
Larry S. Andrews
Jan 01, 0001
This 55 page thesis examines the preparation of carboxyalkyl-P and P-diphenyl phosphines to determine their acidity characteristics as a function of structure and to characterize their ability to function as chelating agents.
Published by: Ursinus College
Intrinsically p-biharmonic maps
Peter Hornung, Roger Moser
Nov 01, 2014
For a compact Riemannian manifold $N$, a domain $\Omega \subset \mathbb{R}^m$ and for $p \in (1,\infty)$, we introduce an intrinsic version $E_p$ of the $p$-biharmonic energy functional for maps $u : \Omega \to N$. This requires...
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ECL sensor for selective determination of citrate ions as a prostate cancer biomarker using polymer of intrinsic microporosity-1 nanoparticles/nitrogen-doped carbon quantum dots

Urine citrate analysis is relevant in the screening and monitoring of patients with prostate cancer and calcium nephrolithiasis. A sensitive, fast, easy, and low-maintenance electrochemiluminescence (ECL) method with...

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Tuning the thiolen

A series of five iron and aluminum complexes bearing {ONSO} imine thiobis(phenolate) ligands have been prepared and applied to the ring-opening polymerization (ROP) of rac-lactide. Fe(1)Cl produced polylactide with a very...

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Tuning the thiolen

A series of five iron and aluminum complexes bearing {ONSO} imine thiobis(phenolate) ligands have been prepared and applied to the ring-opening polymerization (ROP) of rac-lactide. Fe(1)Cl produced polylactide with a very...

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One-step preparation of microporous Pd@cPIM composite catalyst film for triphasic electrocatalysis

Triphasic microporous materials (containing solid, liquid, and gas) are of interest in electrocatalysis. In this exploratory study, a polymer of intrinsic microporosity (PIM-EA-TB) is impregnated with PdCl4 2...

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