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Phosphate Esters Functionalized Dihydroxyl Soybean Oil Tackifier of Pressure‐Sensitive Adhesives
Author(s) -
Ahn B. Kollbe,
Sung Jonggeun,
Sun X. Susan
Publication year - 2012
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-011-1978-6
Subject(s) - phosphoric acid , perchloric acid , adhesive , chemistry , catalysis , fourier transform infrared spectroscopy , soybean oil , nuclear chemistry , phosphate , epoxidized soybean oil , polymer chemistry , organic chemistry , chemical engineering , raw material , biochemistry , layer (electronics) , engineering
Dihydroxyl soybean oil (DSO) has shown potential as a tackifier for pressure‐sensitive adhesive (PSA) applications, and perchloric acid was used previously as a catalyst to open the oxirane rings of epoxidized soybean oils (ESO) when we prepared DSO and PSA. Phosphoric acid is a more eco‐friendly catalyst than perchloric acid; therefore, the objective of this work was to prepare DSO using phosphoric acid as a catalyst and thereby create DSO‐contained phosphate esters, or PDSO. The chemical scaffolds of PDSO were elucidated with 1 H, 1 H– 1 H COSY, 31 P NMR, FTIR, MALDI‐TOF MS, and GPC. ESO PSAs were prepared from a mixture of ESO/PDSO. The ESO PSA prepared with PDSO had peel strength on a plastic carrier comparable to commercial PSA, and while on an aluminum carrier, the ESO PSA had a stronger peel strength. ESO PSA prepared with phosphoric acid was also stronger than the peel strength of the ESO PSA prepared with DSO using perchloric acid.