Most of you have experienced the formation of droplets on the water repellent coating of raincoats, or the spreading of surfactant-containing water on various substrates. In a similar vein, you may well have witnessed the dissolving of edible packaging films in boiling water, or the swelling of natural rubber or SBR in oils…
All of these these phenomenons are related to the active characteristics of the considered chemicals and polymers that are, for the previous cases:
* Hydrophobic
* Hydrophilic
* Lipophilic.
Hydrophilic, hydrophobic, amphiphilic…? Not too complicated!…But not very simple!
Some of them are attracted by fatty products. These are: lipophilic or olephilic
Others are attracted by water, they are hydrophilic
However, in addition some chemicals often include several chemical patterns that lead to various situations according to:
* Lipophilic (or olephilic)/hydrophilic ratio:
Polyethylene wax CH3 - (CH2)n - CH3 is lipophilic and hydrophobic
Acetic acid CH3-COOH is hydrophilic
* Location of olephilic and/or hydrophilic patterns:
Join SpecialChem Expert Team : Write Articles / Answer Technical Requests / Conduct Online Training Courses... Define your expertise and apply here!
SpecialChem4Polymers Members Reactions
How to make amino silicone oils hydrophilic - May 22, 2010
posted by Abde-Ali Bohra, R&D - Applied/ Formulation/ Product development at Advanced Chemical Specialities
i have silicones oils hydrophobic, buying hydrophilic is very expensive, pls can some scientist suggest how can i make hydrophilic amino silicone oils using hydrophobic silicone oils. Perhaps there is use of PEG, but how and reaction conditions, pls advise
Yes! I would like to be alerted on new publications.
SpecialChem4Polymers Members Reactions
