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Emmie Lucassen-Reynders (Emmie Reynders) was born on 25 February, 1935 in Vught, Netherlands, is a Dutch chemist (1935–2023). Discover Emmie Lucassen-Reynders's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is she in this year and how she spends money? Also learn how she earned most of networth at the age of 87 years old?

Popular As Emmie Reynders
Occupation N/A
Age 87 years old
Zodiac Sign Pisces
Born 25 February 1935
Birthday 25 February
Birthplace Vught, Netherlands
Date of death 27 January, 2023
Died Place N/A
Nationality Netherlands

We recommend you to check the complete list of Famous People born on 25 February. She is a member of famous researcher with the age 87 years old group.

Emmie Lucassen-Reynders Height, Weight & Measurements

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Emmie Lucassen-Reynders Net Worth

Her net worth has been growing significantly in 2023-2024. So, how much is Emmie Lucassen-Reynders worth at the age of 87 years old? Emmie Lucassen-Reynders’s income source is mostly from being a successful researcher. She is from Netherlands. We have estimated Emmie Lucassen-Reynders's net worth, money, salary, income, and assets.

Net Worth in 2024 $1 Million - $5 Million
Salary in 2024 Under Review
Net Worth in 2023 Pending
Salary in 2023 Under Review
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Source of Income researcher

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1935

Emmie Helena Lucassen-Reynders (25 February 1935 – 27 January 2023) was a Dutch scientist specialising in colloid chemistry and theoretical physics.

She worked in both academia and in industry.

Lucassen-Reynders was born in Vught.

Her parents were both teachers who met in Zaandam during World War I.

1952

Lucassen-Reynders attended the municipal gymnasium in 's-Hertogenbosch and started her study of chemistry at Utrecht University in 1952.

1958

At the same laboratory she met her future husband Jaap Lucassen in 1958.

After earning her degree, she moved to Unilever in Vlaardingen, where she joined the Physical Chemistry group led by Max van den Tempel.

1959

She graduated in 1959, specialising in Colloid Chemistry and Theoretical Physics at the Van't Hoff laboratory.

1962

Recognising her talents, Van den Tempel encouraged her to work towards a PhD, and in 1962 Lucassen-Reynders defended her dissertation on ‘Stabilization of water in oil emulsions by solid particles’ at Utrecht University in front of Theodoor Overbeek

Lucassen-Reynders' early research considered the impact of fat crystals on the stability of water in emulsions with oils.

Based on the Pickering mechanism, the fat crystals would stabilize this emulsion, in which solid particles are wetted by the continuous phase.

If the emission is water-continuous, the Pickering mechanisms require the solid particles to be polar (for example barium sulfate), whilst in oil-continuous emulsions, the particles must be apolar.

The contact angle is approximately constant and independent of the concentration of particles and type of surfactant.

Lucassen-Reynders used Young's equation and Gibbs' law to explain the relationship between the interfacial tensions and adsorptions of the solid, oil and water.

She continued to investigate the surface equation of state for solutions with surfactants, considering both ionic and non-ionic surfactants.

The consideration of ionic surfactants introduced compilation due to their surface electric potentials, which didn't match the neutral requirements of Gibbs' adsorption law.

1964

In 1964, Lucassen-Reynders spent a year in the United States, where she derived the relationship between surfactant concentration, surface tension and adsorption with ionised surfactants and non-surface-active electrolytes.

She showed that the behaviour of ionised surfactants in oil and water emulsions could be predicted from the behaviour of single components and used the concept of surface electroneutrality to understand how mixing anionic and cationic surfactants impacted adsorption and surface pressure.

1969

In 1969, Lucassen-Reynders moved to England, where she researched surface elasticity and viscosity.

She studied food emulsions, with a focus on interfacial viscoelasticity and emulsification.

1981

Interface Sci 1981;81:150.

surfactants at fluid interfaces.

1986

She moved back to the Netherlands in 1986 and continued her research in the Physical Chemistry group at Unilever Research in Vlaardingen until her retirement in 1997.

Lucassen-Reynders remained active after her retirement, supervising PhD students and continuing to publish.

Much of Lucassen-Reynders’ life work was recognised in an Honorary Note in the leading journal of her field.

Lucassen-Reynders was married to Jaap Lucassen, who she met at the University of Utrecht.

1994

Colloids Surf, A 1994;91:79.

Proteins at Liquid Interfaces.

1996

1996. adsorption of small and large molecules.

1998

Amsterdam: Elsevier Science B.V.; 1998.

p. 341.

behaviour of proteins at water/fluid interfaces in the framework of a two-

2002

Adv Colloid Interface Sci 2002;96:295.

Becher P, editor.

Encyclopedia of Emulsion Technology, vol. 4. New York: Dekker;

2004

Also a physical scientist, Lucassen’s work, including many collaborations with Lucassen-Reynders, is well recognised in an Honorary Note [Advances in Colloid and Interface Science 107 (2004) 1–7 ] and in his obituary.

Together they had two daughters.

Lucassen-Reynders died on 27 January 2023, at the age of 87.

anionic/cationic surfactant systems, I. Equilibrium surface properties.

J Colloid