Published June 1998 | Version v1
Journal article Metadata-only

Positron studies of polymeric gas-separation membranes

Creators

  • 1. RAN, Inst. Khimicheskoj Fiziki im. N.N. Semenova, Moscow (Russian Federation)
  • 2. RAN, Inst. Obshchej Fiziki Moscow (Russian Federation)
  • 3. RAN, Inst. Neftekhimicheskogo Sinteza im. A.V. Topchieva, Moscow (Russian Federation)

Description

Concentrations (1019cm-3) and effective radio of free-volume elements (0.2-2.8 nm) in the materials of gas-separation porous membranes on the basis of polyphenyl oxide with specific surface of 200 and 70 m2/g are evaluated with application of positron annihilation method. The results of application of the PATFIT (discrete spectrum description) and CONTIN (continuous distribution of free-volume elements by sizes) programs are compares

Abstract (Russian)

С использованием метода аннигиляции позитронов оценена концентрация (1019 см-3) и эффективные радиусы элементов свободного объема (0.2-2.8 нм) в материале газоразделительных пористых мембран на основе полифениленоксида с удельной поверхностью 200 и 70 м2/г. Сопоставлены результаты использования программ PATFIT (дискретное описание спектра) и CONTIN (непрерывное распределение по размерам элементов свободного объема

Additional details

Additional titles

Original title (Russian)
Позитронные исследования полимерных газоразделительных мембран

Publishing Information

Journal Title
Vysokomolekulyarnye Soedineniya. Seriya A i Seriya B
Journal Volume
40
Journal Issue
6
Journal Page Range
p. 1024-1028
ISSN
1023-3091
CODEN
VSSBEE

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
31064904
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANNIHILATION; C CODES; DIFFUSION; MEMBRANES; P CODES; POLYPHENYLS; POROSITY; POROUS MATERIALS; POSITRONS; SEPARATION EQUIPMENT; SPECTRA UNFOLDING
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; AROMATICS; COMPUTER CODES; DATA PROCESSING; ELEMENTARY PARTICLES; EQUIPMENT; FERMIONS; HYDROCARBONS; INTERACTIONS; LEPTONS; MATERIALS; MATTER; ORGANIC COMPOUNDS; PARTICLE INTERACTIONS; PROCESSING

Optional Information

Notes
19 refs., 2 figs., 1 tab.