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Chemistry
New in Chemistry (page 6 of 23)
Jun 15, 2010 | 03:07 PM CDT
Comparatively Speaking: Natural Oils vs. Man-made Glyceryl Esters
By: Anthony J. O'Lenick, Jr., Siltech LLC
Industry expert Tony O'Lenick compares natural oils with man-made glyceryl esters, noting that natural oils are made by living systems using enzymes and are currently an attractive option for their sustainability.
Jun 08, 2010 | 04:11 PM CDT
Comparatively Speaking: Types of Flow Behavior
By: Anthony J. O'Lenick Jr., Siltech LLC, and Kell…
The following excerpt is adapted from an article by Kelly Dobos of Kao Corp. that discusses fluid viscosity of cosmetic products, specifically types of flow behavior, which can be used by the formulator to determine the rheological properties of formulations.
Jun 01, 2010 | 02:36 PM CDT
Comparatively Speaking: Evaporation vs. Boiling
By: Anthony J. O'Lenick, Jr., Siltech LLC
Industry expert Tony O'Lenick explains the difference between two types of vaporization: evaporation and boiling, for the benefit of novice formulators.
May 25, 2010 | 03:32 PM CDT
Comparatively Speaking: Alkoxylation vs. Ethenification
By: Anthony J. O'Lenick, Jr., Siltech LLC
Industry expert Tony O'Lenick discusses the difference between alkoxylation and ethenification; for one, while the two are related, ethenification uses an ester as the reactant rather than alcohol.
May 24, 2010 | 09:50 AM CDT
Researchers Develop 'Dendrimersomes' for Cosmetic Delivery
Researchers from several establishments under the leadership of the University of Pennsylvania have developed nano-assemblies of Janus dendrimers, termed dendrimersomes, for the delivery of cosmetics, drugs, proteins and more.
Apr 27, 2010 | 04:50 PM CDT
Comparatively Speaking: Naming Cosmetic Raw Materials
By: Anthony J. O'Lenick, Jr., Siltech LLC
In this excerpt, Tony O'Lenick looks to Perry Romanowski to explain how cosmetic raw materials are named for the benefit of novice formulators.
Apr 09, 2010 | 01:49 PM CDT
Comparatively Speaking: Homopolymer vs. Periodic vs. Statistical Copolymers
By: Anthony J. O'Lenick, Jr., Siltech LLC
Tony O'Lenick discusses the differences between types of copolymers including: homopolymer, periodic (block) and statistical (random) and grafted.
Apr 06, 2010 | 04:51 PM CDT
Comparatively Speaking: Linear vs. Branched vs. Dendrimer Polymer Structures
By: Anthony J. O'Lenick, Jr., Siltech LLC
Industry expert Tony O'Lenick explains the difference between polymer structures, the simplest being a linear chain with a single backbone, then increasing in complexity with one or more side chains or branches. Special types of branched polymers include dendrimers.
Mar 23, 2010 | 04:53 PM CDT
Comparatively Speaking: Natural- vs. Oxo- vs. Ziegler-derived Alcohols
By: Anthony J. O'Lenick, Jr., Siltech LLC
Tony O'Lenick explores the difference between fatty alcohols derived naturally and those derived through the oxo process and the Ziegler process.
Mar 16, 2010 | 04:57 PM CDT
Comparatively Speaking: Guerbet Alcohol vs. Linear Fatty Alcohol
By: Anthony J. O'Lenick, Jr., Siltech LLC
Industry expert Tony O'Lenick explains that Guerbet alcohols have significantly lower melting points than the linear alcohols with the same number of carbon atoms, which makes them highly desirable in the personal care market.