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Physical and chemical characterization of new pressure sensitive adhesives containing abietic acid formaldehyde resins

F. MUSTATA1,* , I. BICU1

Affiliation

  1. Institute of Macromolecular Chemistry ”P. PONI”, Aleea Gr. Ghica Voda 41A, 700487, Iasi, Romania

Abstract

Formaldehyde resins containing resin acid derivatives in their structure were synthesized. The insertion of resin acid derivatives into molecular chains was carried out to improve the cohesive strength of pressure sensitive adhesives. IR, 1HNMR spectroscopy and other physical-chemical methods were used to characterize the monomers, polymers and obtained pressure sensitive tapes. The hydrophenanthrene moieties presented in the chemical structure of these polymers confer them, high solubility in common organic solvents, high adhesiveness, hydrophobicity and water resistance. The presence of formaldehyde resins with hydrophenanthrene moieties (up to 10 wt-% referred to the adhesive composition) into pressure sensitive formulation used as insulting materials for electrical and electronic devices, coffers them an increase of cohesive strength without affecting the adhesive strength..

Keywords

Formaldehyde resin, Resin acids, Pressure sensitive adhesives, WMR spectroscopy.

Submitted at: Nov. 2, 2006
Accepted at: April 15, 2007

Citation

F. MUSTATA, I. BICU, Physical and chemical characterization of new pressure sensitive adhesives containing abietic acid formaldehyde resins, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 4, pp. 1077-1081 (2007)