The adsorption and absorption of water vapor by polyethylene terephthalate | Zendy

Prosser R. A. | Zendy

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The adsorption and absorption of water vapor by polyethylene terephthalate

Author(s) -

Prosser R. A.

Publication year - 1970

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1970.070140409

Subject(s) - polyethylene terephthalate , adsorption , water vapor , materials science , molecule , absorption (acoustics) , polyethylene , absorption of water , chemical engineering , enhanced data rates for gsm evolution , composite material , polymer chemistry , chemistry , organic chemistry , engineering , telecommunications , computer science

An experimental technique for the simultaneous determination of the amount of gas or vapor absorbed and adsorbed by a film of material is given. For Mylar film at 40°C it was found that the amount of water at an activity of 0.9 that was adsorbed was about 1 × 10 −7 g/cm 2 . Assuming that a water molecule is cubical in shape and 3.26 Å on an edge and the surface is geometrically flat, this amounts to several layers of water molecules on the surface for any thickness.

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