HLD/NAC

Chair(s)

• 

  Sanja Natali, PhD

  Customer Product Solutions
  ExxonMobil Chemical
  Baytown, Texas, United States
• 

  Edgar Acosta, PhD

  Professor
  Chemical Engineering and Applied Chemistry
  University of Toronto
  Toronto, Ontario, Canada

The polar nature of fragrance ingredients is challenging. This session will present an overview of current methods and recommendations regarding the hydrophilic-lipophilic difference and net-average curvature model. A presenter will compare the conventional method to determine the characteristic curvature of a surfactant with the dynamic salinity-induced phase-inversion conductivity method. The session will also discuss dynamic salinity-induced phase-inversion conductivity measurements as an effective method to determine the optimal surfactant concentration for alcohol ethoxylate-based surfactant-oil-water systems.

Presentations:

• 11:00 AM – 11:20 AM MDT

  Homogenizer-free miniemulsion polymerization enabled by HLD
  

  Presenting Author: Matthew Lyon, MBA – BASF
• 11:20 AM – 11:40 AM MDT

  HLD mapping of emulsion characteristics: Water-in-oil emulsions with alcohol ethoxylate
  

  Presenting Author: Gregory P. Dado, PhD (he/him/his) – Stepan Company
• 11:40 AM – 12:00 PM MDT

  Introducing dynamic salinity-induced phase-inversion (Dy-SPI) conductivity measurements as a new method to characterize surfactant-oil-water (SOW) systems
  

  Presenting Author: Samuel Lahasky (he/him/his) – Indorama

  Co-Author: Emily Barker (she/her/hers) – Indorama

  Co-Author: Juliana Caixeta Guimaraes (she/her/hers) – Indorama

  Co-Author: Rafael Caetano Jardim Pinto da Silva Salvato (he/him/his) – Indorama
• 12:00 PM – 12:20 PM MDT

  Use of the dynamic salinity-induced phase-inversion (Dy-SPI) conductivity measurements to understand phase changes in alcohol ethoxylate systems
  

  Presenting Author: Emily Barker (she/her/hers) – Indorama

  Co-Author: Samuel Lahasky (he/him/his) – Indorama
• 12:20 PM – 12:40 PM MDT

  Fragranced consumer products:  Formulation practices, related models, and recommendations to enable wider hydrophilic-lipophilic difference (HLD) application
  

  Presenting Author: Nancy Falk, PhD (she/her/hers) – Nancy A Falk PhD Formulation Consulting LLC
• 12:40 PM – 1:00 PM MDT

  Direct assessment of the characteristic curvature (Cc) of surfactants via small angle scattering
  

  Presenting Author: Edgar J. Acosta, PhD – University of Toronto

  Co-Author: Zhuotao Leng – University of Toronto