Tony O’Lenick – A compilation of Articles

A compilation of Articles about Understanding Silicone Chemistry and Formulation Technology
Tony O’Lenick
Published June 2019

This work is a compilation of articles arranged in several sections designed to allow the cosmetic formulator to search for information that will aide in formulations. It is the author’s intention to add new articles as that become available to include the most recent information. Each chapter can stand alone, meaning  it  will contain enough information to allow the reader to understand the topic by reading only that chapter. This results in some information being repeated, but having repetition in chapters enforces the important concepts and reading stand-alone articles in more efficient than having the read the entire work.

As the great Enrico Fermi stated:

“Never underestimate the joy people derive from hearing something they already know.”

Table of Contents
The Basics

It is recommended that the reader look at the chapters in this section, most importantly the first three, since they cover the basic concepts that will apply to all additional chapters. The reader is challenged to ask, why is this particular silicone in the formulation.

Chapter 1: Why use silicone in personal care applications Part 1 – Dimethicone Soluble

Chapter 2: Why use silicone in personal care products Part 2 – Water Soluble Silicone Polymers

Chapter 3: Why use silicone in personal care Applications Part 1 – Oil Soluble Silicone Polymers

Chapter 4: Understanding Silicone – Overview (a large file)

Selected Topics

The articles in this section are intended to dive a little deeper into specific topics, introduced in the Basics.

Chapter 5: Structured gels with organic oils and alkyl dimethicone

Chapter 6: Selecting PEG/PPG Dimethicone Silicone Surfactants

Chapter 7: PEG 8 Dimethicone – High HLB Emulsifier

Chapter 8: PEG Dimethicone in Shampoos

Chapter: 9: Cationic silicone polymers

Chapter 10 Analyzing Silicone Quaternary Compounds

Chapter 11: Selecting Silicone Surfactants for Personal Care Formulations

Chapter 12: Silicone anionic / silicone cationic complexes Silicone Quaternium 20

Chapter 13: Polymer interactions in formulations

Chapter 14: Comparison of Silicone Quaternium 20 and Polyquaternium 10 in hair

Chapter 15: Anionic/ cationic interactions 1

Chapter 16: Anionic/ cationic interactions 2

Chapter 17: MQ Resins in Personal Care

Chapter 18: Elastomers

Chapter 19: Emulsion technology

Chapter 20: Emulsions

Chapter 21: Three Dimensional HLB

Chapter 22: Applying 3D HLB

Chapter 23: Hydroalcoholic triglyceride emulsions investigated

Chapter 24: Alerting organic oils with silicones

Chapter 25: Refractive index modification of silicone polymers

Chapter 26: D5 Replacements

Chapter 27: Silicone additives for antiperspirants based upon alum

Chapter 28: IPCE Chandler

Minimally Disruptive Formulations

The articles in this section are intended to introduce a concept in formulation that expedites the screening of raw materials added in low concentrations to a formulation platform.

Chapter 29: Case Study 1

Chapter 30: Case Study 2

Chapter 31: Case Study 3

Chapter 32: Case Study 4

Chemistry and Properties

Chapter 33: Equlibration Reaction of Silicone Fluids

Chapter 34: Recent Advances in Hydrosilylation

Chapter 35: D5 Health Risk

Chapter 38: DMC Hydrolysis

Chapter 39: Hydrolysis of Silicones

Chapter 40: Hydrolysis silicone fluid

Chapter 41: Atmospheric modeling cyclic siloxanes


Chapter 36: Green star rating for compounds and formulations

Chapter 37: Silicone Extracts

Chapter 39: Hydrolysis of Silicones