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Fluorotelomer-Based Acrylate Polymer...

Rankin, Keegan.

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Fluorotelomer-Based Acrylate Polymers as an Indirect Source of Perfluoroalkyl Carboxylates.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Fluorotelomer-Based Acrylate Polymers as an Indirect Source of Perfluoroalkyl Carboxylates./
Author:	Rankin, Keegan.
Description:	290 p.
Notes:	Source: Dissertation Abstracts International, Volume: 77-01(E), Section: B.
Contained By:	Dissertation Abstracts International77-01B(E).
Subject:	Polymer chemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3720098
ISBN:	9781339008110

Fluorotelomer-Based Acrylate Polymers as an Indirect Source of Perfluoroalkyl Carboxylates.
Rankin, Keegan.

Fluorotelomer-Based Acrylate Polymers as an Indirect Source of Perfluoroalkyl Carboxylates. - 290 p.

Source: Dissertation Abstracts International, Volume: 77-01(E), Section: B.

Thesis (Ph.D.)--University of Toronto (Canada), 2015.

Fluorotelomer-based acrylate polymers (FTACPs) are a class of side-chain fluorinated polymers that have been widely used as surface protectants in textile, upholstery and paper industries. Despite FTACPs constituting the largest fraction of commercial fluorotelomer products, little is known about their environmental fate. This dissertation investigates the development and application of matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry to directly analyze the environmental fate of model FTACPs, which was hypothesized to be a significant indirect source of perfluoroalkyl carboxylates (PFCAs).

ISBN: 9781339008110Subjects--Topical Terms:

3173488
Polymer chemistry.

Fluorotelomer-Based Acrylate Polymers as an Indirect Source of Perfluoroalkyl Carboxylates.
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100 1 $a Rankin, Keegan. $3 3193065
245 1 0 $a Fluorotelomer-Based Acrylate Polymers as an Indirect Source of Perfluoroalkyl Carboxylates.
300 $a 290 p.
500 $a Source: Dissertation Abstracts International, Volume: 77-01(E), Section: B.
500 $a Adviser: Scott A. Mabury.
502 $a Thesis (Ph.D.)--University of Toronto (Canada), 2015.
520 $a Fluorotelomer-based acrylate polymers (FTACPs) are a class of side-chain fluorinated polymers that have been widely used as surface protectants in textile, upholstery and paper industries. Despite FTACPs constituting the largest fraction of commercial fluorotelomer products, little is known about their environmental fate. This dissertation investigates the development and application of matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry to directly analyze the environmental fate of model FTACPs, which was hypothesized to be a significant indirect source of perfluoroalkyl carboxylates (PFCAs).
520 $a MALDI-TOF methods were developed using a homologous series of FTACPs with fluorotelomer and hydrocarbon acrylates. The relative degree of FTACPs fluorination was demonstrated to influence the sample preparation protocol for MALDI-TOF analysis. Application of the MALDI-TOF method was used to directly determine the biodegradation of the model FTACP, poly(8:2 FTAC). Alterations to the characteristic repeat pattern of poly(8:2 FTAC) suggested biodegradation, which was consistent with the indirect analysis of PFCAs by liquid chromatography tandem mass spectrometry (LC-MS/MS). The biodegradation half-life of poly(8:2 FTAC) ranged from 8 to 111 years. Further MALDI-TOF method development demonstrated that FTACPs could be directly quantified using the matrix signal as an internal standard. Direct MALDI-TOF quantification measured the model FTACP, poly(8:2 FTAC-co-HDA), to within 25% of the theoretical concentration in aqueous media.
520 $a Off gassing of residual fluorotelomer alcohols (FTOHs), and as the first degradation product of FTACPs supports atmospheric long-range transport (LRT) of volatile precursors as a principal mode for the global distribution of PFCAs. A collection of surface soils obtained from areas with little human impact showed PFCAs, as well as perfluoroalkanesulfonates (PFSAs), were distributed consistent with the atmospheric oxidation of volatile precursors.
520 $a The principle goal of this dissertation was to directly analyze FTACP degradation. The qualitative MALDI-TOF results strongly suggest that FTACPs will degrade under environmental conditions, and likely represent a significant indirect source of PFCAs.
590 $a School code: 0779.
650 4 $a Polymer chemistry. $3 3173488
650 4 $a Analytical chemistry. $3 3168300
650 4 $a Environmental science. $3 677245
690 $a 0495
690 $a 0486
690 $a 0768
710 2 $a University of Toronto (Canada). $b Chemistry. $3 3178441
773 0 $t Dissertation Abstracts International $g 77-01B(E).
790 $a 0779
791 $a Ph.D.
792 $a 2015
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3720098