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Studies in water‐vapor transmission rate of nonocclusive acrylic adhesive tape
Author(s) -
Athawale V. D.,
Rathi S. C.
Publication year - 1996
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/(sici)1097-4628(19960222)59:8<1243::aid-app6>3.0.co;2-c
Subject(s) - copolymer , monomer , acrylic acid , polymer chemistry , acrylate , adhesive , materials science , water vapor , polymerization , butyl acrylate , methacrylate , polymer , chemical engineering , chemistry , composite material , organic chemistry , layer (electronics) , engineering
Various homopolymers, copolymers, and terpolymers based on 2‐ethylhexyl acrylate (2‐EHA), n ‐butyl methacrylate (nBMA), and acrylic acid (AA) were synthesized using the well‐known free‐radical polymerization technique. The polymers were analyzed by 1 HNMR and IR spectroscopy to identify and confirm the presence of the monomers in the copolymer and also to check the absence of monomer impurities. A water‐vapor transmission rate (WVTR) study of the synthesized adhesives coated on nonwoven polyester fabric was undertaken using the desiccant method. The water‐vapor permeability of the various copolymers changed with the change in monomer concentration. The higher the AA content in the copolymer, the higher was the permeability. The trend shown by various copolymers and terpolymers of 2‐EHA with respect to their WVTR is 2‐EHA‐ co ‐AA > 2‐EHA‐ co ‐nBMA > 2‐EHA‐ co ‐AA‐ co ‐nBMA. © 1996 John Wiley & Sons, Inc.