Polystyrene size determination in polystyrene and poly(vinyl methyl ether) using electronic excitation transport
Article Abstract:
A study of the structure of poly(styrene-co-2-vinylnaphthalene) dissolved in either polystyrene or poly(vinyl methyl ether) reveals that the latter forms a compatible polymer blend with the former. The radius of gyration of a copolymer molecule, which is consistent with that of polystyrene in a theta-solvent, was found to be significantly expanded in the poly(vinyl methyl ether) host relative to the theta-condition at room temperature. The synthesis of poly(styrene-co-2-vinylnaphthalene) is described.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Hydrogen bond networks: Structure and evolution after hydrogen bond breaking
Article Abstract:
The nature of hydrogen bonding networks following hydrogen bond breaking is analyzed using vibrational echo correlation spectroscopy of the hydroxyl stretch of methanol-OD (MeOD) of MeOD oligomers in CCl4. It was found that hydrogen bond breaking initially excited OD stretches and produces their photoproduct with frequency memory of the parent network.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
The Asn 38-Cys 84 H-bond in plastocyanin
Article Abstract:
The role of the H-bond between the copper-bound Cys SGamma and a vicinal Asn NH that is observed in all available plastocycnin structures is discussed. The studies shows the general importance of the second-shell ligands in two type-I blue-copper proteins.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Resonant and nonresonant vibrational and electronic excitations in trimethylaluminum adsorbed on GaAs. Photophysics of PTCDA and Me-PTCDI thin films: Effects of growth temperatures
- Abstracts: Carboxylate binding to Be(super 2+) in proteins and influence of the dielectric environment. Periodic density functional LDA and GGA study of CO adsorption at the (001) surface of MgO
- Abstracts: Analysis of the polarization distribution in a polar perhydrotriphenylene inclusion compound by scanning pyroelectric microscopy
- Abstracts: State preparation and excited electronic and vibrational behavior in hemes. Spectroscopic characterization of doped poly (benzide) and its nanocomposite with cationic clay
- Abstracts: Investigation of the structural and electrochemical properties of size-controlled SnO2 Nanoparticles. New biphenyl derivative with planar phenyl-phenyl conformation in crystal at room temperature exhibits highly efficient UV light-emitting