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Determination of the packing density of solid polymer chains. Determination of the specific surface area of polymers by sorption of nitrogen vapor
Author(s) -
Tsilipotkina M. V.,
Tager A. A.,
Petrov B. S.,
Pustobaeva G.
Publication year - 1963
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760030212
Subject(s) - sorption , polystyrene , materials science , boiling point , polymer , nitrogen , polyethylene , chemical engineering , boiling , polymer chemistry , porosity , organic chemistry , composite material , chemistry , adsorption , engineering
The sorption of nitrogen vapors on polyethylene, polytetrafluoroethylene, saran, polyvinylalcohol, polyvinylacetate, polystyrene, cellulose and ethylcellulose at the nitrogen boiling point has been investigated. It has been shown that polyethylene, polytetrafluoroethylene, saran, polyvinylalcohol and polyvinylacetate are non‐porous sorbents with dense packing of the macromolecules. It has been shown that the specific surface area of cellulose, ethylcellulose and the total pore volume of polystyrene calculated from nitrogen vapor sorption is less than the corresponding value determined from the sorption of organic substances. Nitrogen vapor sorption at the nitrogen boiling point cannot be used for estimating the porosity of loosely packed polymers.