✦ LIBER ✦

The Effect of [CuI]/[CuII] Ratio on the Kinetics and Conformation of Polyelectrolyte Brushes by Atom Transfer Radical Polymerization

✍ Scribed by Nan Cheng; Omar Azzaroni; Sergio Moya; Wilhelm T. S. Huck

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 225 KB
Volume: 27
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.200600467

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Summary: The atom transfer radical polymerization of [2‐(methacryloyloxy)ethyl]trimethylammonium chloride (METAC) has been studied under different [Cu^I^]/[Cu^II^] ratios. The reaction kinetics is followed by ellipsometry and quartz crystal microbalance and it was found that the reaction speed influences the grafting density of the polymer brushes. High [Cu^I^]/[Cu^II^] ratios, i.e., fast polymerizations, lead to less dense polymer brushes.

Plot of the frequency change of wet brushes on a QCM crystal (Δ__f__) versus the dry thickness of brushes synthesized at different [Cu^I^]/[Cu^II^] ratios.

imagePlot of the frequency change of wet brushes on a QCM crystal (Δ__f__) versus the dry thickness of brushes synthesized at different [Cu^I^]/[Cu^II^] ratios.

📜 SIMILAR VOLUMES

Effect of [Pyridylmethanimine]/[CuI] Rat

Effect of [Pyridylmethanimine]/[CuI] Ratio, Ligand, Solvent and Temperature on the Activation Rate Constants in Atom Transfer Radical Polymerization

✍ Wei Tang; Ajaya Kumar Nanda; Krzysztof Matyjaszewski 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 133 KB 👁 1 views

## Abstract Summary: The effect of [L]/[Cu^I^] ratio, ligand, the choice of solvent and temperature on the activation rate constants in ATRP with catalyst complexes formed with two pyridylmethanimine ligands [PMI, i.e., __N__‐propyl‐pyridylmethanimine (NPPMI) and __N__‐octyl‐pyridylmethanimine (NOP

Evaluation of the confinement effect of

Evaluation of the confinement effect of nanoclay on the kinetics of styrene atom transfer radical polymerization

✍ Hossein Roghani-Mamaqani; Vahid Haddadi-Asl; Mohammad Najafi; Mehdi Salami-Kalaj 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 777 KB

## Abstract The grafting through method was employed to study the effect of nanoclay confinement on the atom transfer radical polymerization (ATRP) of styrene. An ammonium salt containing a double bond on its structure was used as a clay modifier. Employing ATRP to polymerize styrene in the presenc

The Effect of Reducing Monosaccharides o

The Effect of Reducing Monosaccharides on the Atom Transfer Radical Polymerization of Butyl Methacrylate

✍ Andrew de Vries; Bert Klumperman; Deon de Wet-Roos; Ron D. Sanderson 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 84 KB 👁 2 views

Solvent Effects on the Synthesis of Poly

Solvent Effects on the Synthesis of Poly(methyl methacrylate) by Atom-Transfer Radical Polymerization (ATRP)

✍ José Luis de la Fuente; Marina Fernández-Sanz; Marta Fernández-García; Enrique L 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 142 KB 👁 2 views

Effect of ferrocene moieties on the copp

Effect of ferrocene moieties on the copper-based atom transfer radical polymerization of methyl methacrylate

✍ Atchariya Sunsin; Nuttaporn Wisutsri; Sarisa Suriyarak; Rattapon Teanchai; Sudar 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 230 KB 👁 2 views

Effect of the Ligand in Atom Transfer Ra

Effect of the Ligand in Atom Transfer Radical Polymerization Reactions Initiated by Photodimers of 9-Bromoanthracene

✍ Nicole A. Cohen; Eric S. Tillman; Sona Thakur; Jenell R. Smith; William T. Ecken 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 248 KB 👁 1 views

## Abstract Slow initiation from the bridgehead radical in atom transfer radical polymerization (ATRP) reactions initiated by 9‐bromoanthracene photodimers leads to polymers' products possessing high PDI values and higher than expected $\overline M \_{\rm n}$ values. We report here the effects of c