68777-63-9

Upstream product

• 2131-18-2 1-phenylpentadecane 
• 75-36-5 acetyl chloride 

Downstream Products

• 62443-08-7 4-n-pentadecylbenzoic acid 
• 94859-75-3 4-n-pentadecylbenzoyl chloride 

Relevant academic research and scientific papers

Bisphenol compound and process for preparation thereof

The present invention provides a novel bisphenol compound of formula (I). wherein R1 and R2 are the same or different and are independently either hydrogen or methyl at each occurrence. The present invention also provides a process for preparation of these bisphenol compounds starting from Cashew Nut Shell Liquid (CNSL); —a renewable resource material. The bisphenols prepared in the present invention can be utilized as difunctional monomers for the preparation of various polymers such as epoxy resins, polyesters, polyethersulfones, polyetherketones, polyetherimides, polyarylates, polycarbonates, etc.

Liquid crystallinity of 2-fluorenyl 4-alkylbenzoates

The liquid crystallinity values of 2-fluorenyl 4-alkyl (pentadecyl, n-, or s-butyl)-benzoates were compared with those of biphenyl homologues. Cyano group or hydrogen was used as the end group at the 7-position of 2-fluorenol moiety. Methoxy and hydroxy groups in addition to hydrogen were examined as a lateral substituent at the 2-position of 4-alkylbenzoic acid unit. 7-Cyano-2-fluorenyl 2-hydroxy-4-pentadecylbenzoate shows very similar properties to those of 4′-cyanobiphenyl-4-yl 2-hydroxy-4-pentadecylbenzoate.

Study of the Influence of Molecular Length on the Characteristics of the Ordered Smectic Phase.

Study of DTA and X-rays of p-phenyl-benzylidene-p'-alkylanilines of mesomorphic phases demonstrates the predominant role of the aliphatic chain length. In effect, it governs the appearance of the different phases; the correlation between layers decreases for greater chain lengths. The nonlinear variations of SmB layer thickness for these compounds shows clearly the importance of steric effects coupled with the molecular length with respect to the dipolar effect.