1] of each caffeic acid (CA), syringic acid (SA) and 4-hydroxybenzoic acid (4-HBA) were prepared by incorporating the respective phenolic acids into Potato Dextrose Agar (PDA), with the phenolic acids being first dissolved in acetone:water (50:50; v/v) before incorporated into the medium.
Caffeic acid and 4-hydroxybenzoic acid required a higher concentration (up to 2.
guar gum powder (Ases Chemical Works, Jodhpur, India), epichlorohydrin (Aldrich, USA), 4-hydroxybenzoic acid (LOBA Chemic Pvt.
Preparation of 4-Hydroxybenzoic Acid Derivative of Guar Gum.
Improving laccase-facilitated grafting of 4-hydroxybenzoic acid
to high-kappa kraft pulps.
Antithyroid effect of a food or drug preservative: 4-hydroxybenzoic acid
23 4-Hydroxybenzoic acid
> 100 > 100 Kaempferol 1.
In this study, we report the findings on the effect of three phenolic acids; caffeic acids (CA), syringic acid (SA) and 4-hydroxybenzoic acid
(4-HBA) in suppressing the Ganoderma invasion within the infected oil palm trees and their surrounding soil in estate.
Monomer Structure Chemical Name  Hydroquinone (HQ)  4,4'-dihydroxybiphenyl (BP)  Terephthalic acid (TA)  2,6-naphthalenedicarboxylic acid (NDA)  4-hydroxybenzoic acid
(HBA) [REPRESENTS CHEMICAL STRUCTURES OF THE MONOMERS ] Table 2.
Vectra, a copolyester based on 4-hydroxybenzoic acid
and 2-hydroxy-6-naphthoic acid, can under some circumstances crystallize/recrystallize both in the solid state and in the nematic melt, a behavior that profoundly affects the mobility of the chains and thereby the relaxation times (18-24).
An injection molding PE grade has been blended with a semirigid LCP (SBH), synthesized from sebacic acid (S), 4,4[prime]-dihydroxybiphenyl (B), and 4-hydroxybenzoic acid
(H), as described before (21-25), and the effect of the addition of the PE-g-SBH copolymers, or that of a commercial MA-grafted PE sample, has been investigated by morphological, rheological and mechanical characterizations.
Wholly aromatic LCPs, such as Vectra-A, a copolyester of 4-hydroxybenzoic acid
(H), and 2-hydroxy-6-naphthoic acid (N) produced by Hoechst Celanese have been shown to display no miscibility and poor compatibility with PET [2-12].