𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Morphology and Motional Heterogeneity in PS/PMMA Diblock Copolymers Studied by 1H and 13C Solid-State NMR Spectroscopy

✍ Scribed by Sonia Gandhi; Claudiu Melian; Dan Eugen Demco; Ajaib Singh Brar; Bernhard Blümich

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
446 KB
Volume
209
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The domain thicknesses and the heterogeneity of the chain dynamics of PS__‐b‐__PMMA diblock copolymers with different molar masses was studied by ^1^H and ^13^C solid‐state NMR. The chain dynamics heterogeneity of different components and inside the interfacial region was investigated by different NMR methods, including ^1^H residual second van Vleck moments of PS and high‐resolution ^13^C longitudinal magnetization relaxation. The effect of changes in the morphology on chain dynamics heterogeneity is demonstrated. The interplay between microscopic and mesoscopic properties of diblock copolymer is helpful for a better assessment of their role in the mechanical properties of these systems.

magnified image

📜 SIMILAR VOLUMES

The structural and dynamic properties of
The structural and dynamic properties of 1-bromodecane in urea inclusion compounds investigated by solid-state 1H, 13C and 2H NMR spectroscopy
✍ Xiaorong Yang; Klaus Müller 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 312 KB 👁 1 views

## Abstract For asymmetric guest molecules in urea, the end‐groups of two adjacent guest molecules may arrange in three different ways: head–head, head–tail and tail–tail. Solid‐state ^1^H and ^13^C NMR spectroscopy is used to study the structural properties of 1‐bromodecane in urea. It is found th

Study of high molecular weight wheat glu
Study of high molecular weight wheat glutenin subunit 1Dx5 by 13C and 1H solid-state NMR spectroscopy. I. Role of covalent crosslinking
✍ Enrica Alberti; Simon M. Gilbert; Arthur S. Tatham; Peter R. Shewry; Ana M. Gil 📂 Article 📅 2002 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 161 KB 👁 2 views

This work describes a carbon and proton solid-state NMR study of the hydration of a high molecular weight wheat glutenin subunit, 1Dx5. The effect of the presence of disulfide bonds on the hydration behavior of the subunit is investigated by a comparison of the unalkylated and alkylated forms of the

Understanding Sterol-Membrane Interactio
Understanding Sterol-Membrane Interactions, Part II: Complete 1H and 13C Assignments by Solid-State NMR Spectroscopy and Determination of the Hydrogen-Bonding Partners of Cholesterol in a Lipid Bilayer
✍ Olivier Soubias; Franck Jolibois; Valérie Réat; Alain Milon 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 291 KB 👁 2 views

## Abstract The complete assignment of cholesterol ^1^H and ^13^C NMR resonances in a lipid bilayer environment (L~α~‐dimyristoylphosphatidylcholine/cholesterol 2:1) has been obtained by a combination of 1D and 2D MAS NMR experiments: ^13^C spectral editing, ge‐HSQC, dipolar HETCOR and J‐based HETC