Cloud droplet activation of polymerized organic aerosol

Markus D. Petters; Sonia M. Kreidenweis; Jefferson R. Snider; Kirsten A. Koehler; Qiang Wang; Anthony J. Prenni; Paul J. Demott

doi:10.1111/j.1600-0889.2006.00181.x

Cloud droplet activation of polymerized organic aerosol

Markus D. Petters
, Sonia M. Kreidenweis
, Jefferson R. Snider
, Kirsten A. Koehler
, Qiang Wang
, Anthony J. Prenni
, Paul J. Demott

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

High-molecular-weight organic compounds represent an important fraction in atmospheric aerosols, but their interactions with atmospheric water vapour are not well understood. Specifically, the hygroscopicity of polymerized atmospheric aerosols is larger than expected for their high molecular weights and is not a strong function of the degree of polymerization, but their cloud-nucleating activity declines as polymerization progresses. We apply a Flory-Huggins based theory for polymer-water interactions to describe water activity in aqueous solutions of atmospherically relevant oligomers and polymers, and show via experiments on particles composed of commercial polymers that it is consistent with observed particle hygroscopic growth and cloud formation behaviour.

Original language	English (US)
Pages (from-to)	196-205
Number of pages	10
Journal	Tellus, Series B: Chemical and Physical Meteorology
Volume	58
Issue number	3
DOIs	https://doi.org/10.1111/j.1600-0889.2006.00181.x
State	Published - Jul 2006
Externally published	Yes

ASJC Scopus subject areas

Atmospheric Science

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10.1111/j.1600-0889.2006.00181.x

Cite this

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title = "Cloud droplet activation of polymerized organic aerosol",

abstract = "High-molecular-weight organic compounds represent an important fraction in atmospheric aerosols, but their interactions with atmospheric water vapour are not well understood. Specifically, the hygroscopicity of polymerized atmospheric aerosols is larger than expected for their high molecular weights and is not a strong function of the degree of polymerization, but their cloud-nucleating activity declines as polymerization progresses. We apply a Flory-Huggins based theory for polymer-water interactions to describe water activity in aqueous solutions of atmospherically relevant oligomers and polymers, and show via experiments on particles composed of commercial polymers that it is consistent with observed particle hygroscopic growth and cloud formation behaviour.",

author = "Petters, \{Markus D.\} and Kreidenweis, \{Sonia M.\} and Snider, \{Jefferson R.\} and Koehler, \{Kirsten A.\} and Qiang Wang and Prenni, \{Anthony J.\} and Demott, \{Paul J.\}",

year = "2006",

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doi = "10.1111/j.1600-0889.2006.00181.x",

language = "English (US)",

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T1 - Cloud droplet activation of polymerized organic aerosol

AU - Petters, Markus D.

AU - Kreidenweis, Sonia M.

AU - Snider, Jefferson R.

AU - Koehler, Kirsten A.

AU - Wang, Qiang

AU - Prenni, Anthony J.

AU - Demott, Paul J.

PY - 2006/7

Y1 - 2006/7

N2 - High-molecular-weight organic compounds represent an important fraction in atmospheric aerosols, but their interactions with atmospheric water vapour are not well understood. Specifically, the hygroscopicity of polymerized atmospheric aerosols is larger than expected for their high molecular weights and is not a strong function of the degree of polymerization, but their cloud-nucleating activity declines as polymerization progresses. We apply a Flory-Huggins based theory for polymer-water interactions to describe water activity in aqueous solutions of atmospherically relevant oligomers and polymers, and show via experiments on particles composed of commercial polymers that it is consistent with observed particle hygroscopic growth and cloud formation behaviour.

AB - High-molecular-weight organic compounds represent an important fraction in atmospheric aerosols, but their interactions with atmospheric water vapour are not well understood. Specifically, the hygroscopicity of polymerized atmospheric aerosols is larger than expected for their high molecular weights and is not a strong function of the degree of polymerization, but their cloud-nucleating activity declines as polymerization progresses. We apply a Flory-Huggins based theory for polymer-water interactions to describe water activity in aqueous solutions of atmospherically relevant oligomers and polymers, and show via experiments on particles composed of commercial polymers that it is consistent with observed particle hygroscopic growth and cloud formation behaviour.

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M3 - Article

AN - SCOPUS:33745041713

SN - 0280-6509

VL - 58

SP - 196

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JO - Tellus, Series B: Chemical and Physical Meteorology

JF - Tellus, Series B: Chemical and Physical Meteorology

IS - 3

ER -

Cloud droplet activation of polymerized organic aerosol

Abstract

ASJC Scopus subject areas

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