Understanding dendritic polymer-hydrocarbon interactions for oil dispersion

Nicholas K Geitner; Priyanka Bhattacharya; Muriel Steele; Ran Chen; David A Ladner; Pu Chun Ke

doi:10.1039/c2ra21602g

Understanding dendritic polymer-hydrocarbon interactions for oil dispersion

Nicholas K Geitner, Priyanka Bhattacharya, Muriel Steele, Ran Chen, David A Ladner, Pu Chun Ke

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

16 Citations (Scopus)

Abstract

This study examines the interactions of poly(amidoamine) dendrimers and hyperbranched poly(ethyleneimine) polymers with model linear and polyaromatic hydrocarbons. Large-scale complexations were formed for both types of dendritic polymers hosting the linear but not the polyaromatic hydrocarbon. Furthermore, both types of dendritic polymers exhibited a strong and comparable hosting/dispersion capacity for the polyaromatic hydrocarbon, while the hyperbranched polymers at concentrations below 30 μM showed a consistently higher hosting capacity than the dendrimers for the linear hydrocarbon. Such complexity in hosting capacity of the two types of dendritic polymers is attributed to the more hydrophobic interior and less steric hindrance of the hyperbranched polymers for the partitioning of the hydrocarbons.

Original language	English
Pages (from-to)	9371-9375
Number of pages	5
Journal	RSC Advances
Volume	2
Issue number	25
DOIs	https://doi.org/10.1039/c2ra21602g
Publication status	Published - 21 Oct 2012
Externally published	Yes

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AU - Geitner, Nicholas K

AU - Bhattacharya, Priyanka

AU - Steele, Muriel

AU - Chen, Ran

AU - Ladner, David A

AU - Ke, Pu Chun

PY - 2012/10/21

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AB - This study examines the interactions of poly(amidoamine) dendrimers and hyperbranched poly(ethyleneimine) polymers with model linear and polyaromatic hydrocarbons. Large-scale complexations were formed for both types of dendritic polymers hosting the linear but not the polyaromatic hydrocarbon. Furthermore, both types of dendritic polymers exhibited a strong and comparable hosting/dispersion capacity for the polyaromatic hydrocarbon, while the hyperbranched polymers at concentrations below 30 μM showed a consistently higher hosting capacity than the dendrimers for the linear hydrocarbon. Such complexity in hosting capacity of the two types of dendritic polymers is attributed to the more hydrophobic interior and less steric hindrance of the hyperbranched polymers for the partitioning of the hydrocarbons.

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Understanding dendritic polymer-hydrocarbon interactions for oil dispersion

Abstract

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