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Surface phosphonylation of low‐density polyethylene
Author(s) -
Allan Jacqueline M.,
Dooley R. Larry,
Shalaby Shalaby W.
Publication year - 2000
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(20000624)76:13<1870::aid-app4>3.0.co;2-v
Subject(s) - materials science , polyethylene , polymer , contact angle , surface roughness , analytical chemistry (journal) , low density polyethylene , composite material , high density polyethylene , surface finish , gas phase , phase (matter) , chemistry , chromatography , organic chemistry
Surface phosphonylation of thermoplastic polymers was previously demonstrated in both the liquid and gas phase. For the present study, the phosphonylation process was modified through the use of a two‐chamber reactor and a dynamic oxygen flow in an effort to secure greater control of the gas phase reaction. Low‐density polyethylene films were phosphonylated at both ambient and elevated temperatures for time periods ranging from 15 to 60 min. Subsequently, all films were analyzed by SEM, EDX, horizontal ATR‐FTIR, surface roughness, and dynamic contact angle measurements. Analysis of the data indicates that after 15 min at ambient temperature, films do not phosphonylate to a degree that could be detected by the chosen methods. Phosphonylation was achieved at 30 and 60 min at ambient temperature, and at 60 min at 45°C. The data indicate that optimal conditions for gas phase phosphonylation in the described apparatus are 25°C for times greater than 15 min but less than 60 min. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 76: 1870–1875, 2000