DNP NMR spectroscopy of cross-linked organic polymers: rational guidelines towards optimal sample preparation
文献情報
Wei-Chih Liao, Atsuko Ogawa, Kazuhiko Sato, Christophe Copéret
Cross-linked polystyrenes (PS) are an important class of polymers, whose properties are strongly dependent on incorporated functionalities, for which detailed understanding of their structure remains a challenge. Here, we develop a rational guideline for dynamic nuclear polarization (DNP) sample formulation for cross-linked PS to interrogate their structure. We show that the DNP enhancement on a series of cross-linked PS bearing alkylammonium groups as prototypical organic polymers correlates with the polymer swelling properties in both apolar and polar formulations (TEKPol/1,1,2,2-tetrachloroethane and AMUPol/dimethyl sulfoxide). This work provides guidelines to easily optimize DNP formulation using a simple swelling test and enables natural abundance 15N NMR to be recorded on a series of PS-supported quaternary alkylammonium salts, allowing a detailed structural analysis.
関連文献
Encapsulation of spherical nanoparticles by colloidal dimers
Gianmarco Munaò, Dino Costa, Carlo Caccamo
DOI: 10.1039/C6CP04704A
Enhanced low-temperature ionic conductivity via different Li+ solvated clusters in organic solvent/ionic liquid mixed electrolytes
Luis Aguilera, Johan Scheers, Aleksandar Matic
DOI: 10.1039/C6CP04766A
Probing ligand-induced modulation of metallic states in small gold nanoparticles using conduction electron spin resonance
Anthony Cirri, Alexey Silakov, Lasse Jensen, Benjamin J. Lear
DOI: 10.1039/C6CP02205G
Conformation-specific spectroscopy of capped, gas-phase Aib oligomers: tests of the Aib residue as a 310-helix former
Joseph R. Gord, Daniel M. Hewett, Alicia O. Hernandez-Castillo, Karl N. Blodgett, Matthew C. Rotondaro, Adalgisa Varuolo, Matthew A. Kubasik, Timothy S. Zwier
DOI: 10.1039/C6CP04909E
In situ growth of MoS2 nanosheets on reduced graphene oxide (RGO) surfaces: interfacial enhancement of absorbing performance against electromagnetic pollution
Mengxiao Sun, Kun Zhang, Wanchun Jiang, Meng He
DOI: 10.1039/C6CP04600B
Shedding light on the mechanism of asymmetric track etching: an interplay between latent track structure, etchant diffusion and osmotic flow
Valery V. Bashevoy, Irina V. Blonskaya, Nikolay E. Lizunov, Oleg L. Orelovitch
DOI: 10.1039/C6CP05465J
Electron spin dynamics and spin–lattice relaxation of trityl radicals in frozen solutions
Hanjiao Chen, Alexander G. Maryasov, Michael K. Bowman
DOI: 10.1039/C6CP02649D
Hydrogen motions in defective graphene: the role of surface defects
Daniele Pontiroli, Mónica Jiménez-Ruiz, Mark Johnson, Matteo Aramini, Mattia Gaboardi, Stewart F. Parker, Mauro Riccó, Stéphane Rols
DOI: 10.1039/C6CP04727K
A new perspective on the electron transfer: recovering the Butler–Volmer equation in non-equilibrium thermodynamics
Wolfgang Dreyer, Clemens Guhlke, Rüdiger Müller
DOI: 10.1039/C6CP04142F
Electronic structure of CuTPP and CuTPP(F) complexes: a combined experimental and theoretical study II
Giulia Mangione, Mauro Sambi, Silvia Carlotto, Andrea Vittadini, Giovanni Ligorio
DOI: 10.1039/C6CP03956A
こちらもおすすめ
2,3-スチオエポキシマドルを取り扱う際の実験室安全事項は何ですか?
取り扱いにはPPE(プロテクティブ・パーソナル・エイド)が必要で、防ぐ手袋と保護眼鏡を着用してください。ドラフトチャンバーの使用を推奨します。漏洩した場合は、適...
BOC-S-3-アミニ-4-(4-メチオキシベンチル)-ブタン酸の代替品はありますか?
この化合物の代替品としては、BOC保護基を有さないアミノ酸やその他の保護基化合物が考えられます。また、メチオキシ基を有しない他の芳香族アミノ酸も代替品として挙げ...
Methyl 2-(chloromethyl)-3-nitrobenzoate(1218910-61-2)の代替品はありますか?
Methyl 2-(chloromethyl)-3-nitrobenzoate(1218910-61-2)の代替品としては、化学組成を変えることで効果を達成する...
(2R)-2-アミノ-N-ベンジル-3-ヒドロキシプロパナミドを含む廃棄物はどのように処理すべきですか?
(2R)-2-アミノ-N-ベンジル-3-ヒドロキシプロパナミドを含む廃棄物は、適切な廃棄物管理ガイドラインに基づき処理する必要があります。まず、廃棄物を適切に収...
6,7-二氢-咪唑並[1,2-a]ピリドイン-8(5h)-酮はどのように合成されますか?
6,7-二氢-咪唑並[1,2-a]ピリドイン-8(5h)-酮は、2-ブロモフェニルアセトインとリン酸ハロゲン化物を反応させることで合成できます。この反応は高温で...
エチル(3R)-3-ピロリジニル酢酸水和塩とは何ですか?
エチル(3R)-3-ピロリジニル酢酸水和塩は、CAS番号1332459-32-1の化合物で、(R)-乙基2-(ピロリジン-3-基)酢酸塩水和塩と呼ばれます。この...
(2S)-{[(2-メチルエチルオキシ]カルボニル}アミノ)[2-(トリアフルオロメチルフェニル]エチカシック酸の物理化学的性質は何ですか?
(2S)-{[(2-メチルエチルオキシ]カルボニル}アミノ)[2-(トリアフルオロメチルフェニル]エチカシック酸のCAS番号は1203454-45-8です。この...
2-ブロモ-1-(2-メチル-2-プロパニル)-4-ニトロベンゼンはどのように保存すればよいですか?
2-ブロモ-1-(2-メチル-2-プロパニル)-4-ニトロベンゼンは、直射日光を避けて暗所で、室温(約15℃〜25℃)、乾燥した場所に保存する必要があります。ま...
1-[(4-硝基フェニル)スルホニル]-1H-1,2,4-三唑の市場動向や研究トレンドはどうですか?
市場動向としては、1-[(4-硝基フェニル)スルホニル]-1H-1,2,4-三唑は主に農業用除草剤や合成化学製品の原料として利用されています。研究トレンドとして...
掲載誌
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![(R)-N-[(S)-1-[2-(Diphenylphosphino)phenyl]ethyl]-2-methylpropane-2-sulfinamide structure (R)-N-[(S)-1-[2-(Diphenylphosphino)phenyl]ethyl]-2-methylpropane-2-sulfinamide structure](https://static.chemtradehub.com/structs/159/1595319-98-4-33e7.webp)



