First observation of an ordered microphase in melts of poly(oxyethylene)–poly(oxypropylene) block copolymers
Literature Information
J. Patrick A. Fairclough, Ga-Er Yu, Shao-Min Mai, Michael Crothers, Kell Mortensen, Anthony J. Ryan, and Colin Booth
The first observation of ordered microphase structures in poly(oxyethylene)–poly(oxypropylene) diblock copolymers melts is reported. Two diblock copolymers were synthesised by anionic polymerisation, i.e. E130P58 and E107P69 where E represents an oxyethylene unit, OCH2CH2, and P an oxypropylene unit, OCH2CH(CH3). The volume fractions of the two components were in the range 0.5–0.6. Order in the melt phase was confirmed by small angle X-ray scattering, and order-to-disorder transitions (ODT) were located at 106°C (E130P58) and 114°C (E107P69). In a related experiment, a triblock copolymer with perdeuterated P blocks, E33dP42E33, was synthesised and studied in the melt phase by small-angle neutron scattering. This allowed determination of the temperature dependence of the Flory–Huggins interaction parameter for the poly(oxyethylene)–poly(oxypropylene) system, i.e. χ=20.2/T+0.0221.
Related Literature
Growth patterns and structural motifs of cadmium clusters with up to 60 atoms: disordered or not?
Stephan Kohaut
DOI: 10.1039/C6CP04948F
Lipid molecules can induce an opening of membrane-facing tunnels in cytochrome P450 1A2
Petr Jeřábek, Jan Florián
DOI: 10.1039/C6CP03692A
Steric and electric field driven distortions in aromatic molecules: spontaneous and non-spontaneous symmetry breaking
Kalishankar Bhattacharyya, Ammu Surendran, Chandra Chowdhury, Ayan Datta
DOI: 10.1039/C6CP05237A
Spin-state energies of heme-related models from spin-flip TDDFT calculations
Hui Zhao, Changfeng Fang, Chengbu Liu
DOI: 10.1039/C6CP04826A
An ab initio anharmonic approach to study vibrational spectra of small ammonia clusters
Lo-Yun Lee, Marusu Katada, Asuka Fujii, Jer-Lai Kuo
DOI: 10.1039/C6CP05537K
Metallic cyanoacetylides of copper, silver and gold: generation and structural characterization
Carlos Cabezas, Carmen Barrientos, Antonio Largo, Jean-Claude Guillemin, J. L. Alonso
DOI: 10.1039/C6CP04474C
Control of morphology and defect density in zinc oxide for improved dye-sensitized solar cells
Seul Ah Kim, Muhammad Awais Abbas, Lanlee Lee, Byungwuk Kang, Hahkjoon Kim
DOI: 10.1039/C6CP04204J
Trapped in the coordination sphere: nitrate ion transfer driven by the cerium(iii/iv) redox couple
Ross J. Ellis, Mrinal K. Bera, Benjamin Reinhart, Mark R. Antonio
DOI: 10.1039/C6CP06528G
Preparation and electrochemical properties of Li2MoO3/C composites for rechargeable Li-ion batteries
Yotaro Shirao, Kei Kubota, Shinichi Komaba
DOI: 10.1039/C6CP05162F
The Ebola virus protein VP40 hexamer enhances the clustering of PI(4,5)P2 lipids in the plasma membrane
Jeevan B. GC
DOI: 10.1039/C6CP03776C
You might also like
How is Ethyl 4-chlorothieno[2,3-b]pyridine-5-carboxylate (CAS: 59713-58-5) typically synthesized?
Ethyl 4-chlorothieno[2,3-b]pyridine-5-carboxylate (CAS: 59713-58-5) can be synth...
What regulatory guidelines apply to 5-Methyl-1H-indole-3-carbaldehyde (CAS: 52562-50-2)?
5-Methyl-1H-indole-3-carbaldehyde (CAS: 52562-50-2) is subject to various regula...
What are the physical and chemical properties of (1,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)boronic acid (CAS: 223418-73-3)?
(1,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)boronic acid is a white...
How should waste containing Sulfocostunolide A (CAS: 1016983-51-9) be handled?
Waste containing Sulfocostunolide A (CAS: 1016983-51-9) should be handled with c...
What precautions should be taken when handling Murraxocin (CAS: 88478-44-8)?
When handling Murraxocin (CAS: 88478-44-8), ensure proper personal protective eq...
What are the physical and chemical properties of Formvar (CAS: 63148-64-1)?
Formvar (CAS: 63148-64-1) is an alkyd resin characterized by a high molecular we...
Is (S)-4-benzyl-2-((benzyloxy)methyl)morpholine (CAS: 205242-66-6) safe?
(S)-4-benzyl-2-((benzyloxy)methyl)morpholine is generally safe when handled with...
What industries use Methyl 1-(5-bromo-2-pyrimidinyl)cyclopropanecarboxylate (CAS: 1447607-69-3)?
Methyl 1-(5-bromo-2-pyrimidinyl)cyclopropanecarboxylate (CAS: 1447607-69-3) is p...
Is 2-Methyl-1-phenyl-1-propanamine hydrochloride (CAS: 24290-47-9) safe?
2-Methyl-1-phenyl-1-propanamine hydrochloride (CAS: 24290-47-9) is generally con...
How is 3-(4-Bromophenyl)-2-methylpropanoic acid (CAS: 66735-01-1) typically synthesized?
3-(4-Bromophenyl)-2-methylpropanoic acid is synthesized through a multi-step pro...
Source Journal
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.











![9,9'-Spirobi[fluoren]-2-amine structure 9,9'-Spirobi[fluoren]-2-amine structure](https://static.chemtradehub.com/structs/118/118951-68-1-0d14.webp)
![4-{1-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropyl}morpholine structure 4-{1-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropyl}morpholine structure](https://static.chemtradehub.com/structs/120/1206594-08-2-7afb.webp)

![Sodium 6-amino-3-[(E)-{4-[(E)-(4-aminophenyl)diazenyl]-2-methoxy-5-methylphenyl}diazenyl]-4-hydroxy-2-naphthalenesulfonate structure Sodium 6-amino-3-[(E)-{4-[(E)-(4-aminophenyl)diazenyl]-2-methoxy-5-methylphenyl}diazenyl]-4-hydroxy-2-naphthalenesulfonate structure](https://static.chemtradehub.com/structs/294/2945-96-2-092f.webp)