Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/15473
Title: Inhibition by Poly(acrylic acid) and Morphological Changes in Calcium Carbonate and Calcium Carbonate/Calcium Sulfate Crystallization on Silica Fibers
Contributor(s): Al-Hamzah, Ali (author); Wallace, Andrew  (author); East, Christopher P (author); Doherty, William O S (author); Smith, Erica  (author)orcid ; Fellows, Christopher  (author)orcid 
Publication Date: 2014
DOI: 10.1021/ie500911g
Handle Link: https://hdl.handle.net/1959.11/15473
Abstract: An intrinsic exposed core optical fiber sensor (IECOFS) made from fused silica was used to monitor the crystallization of calcium carbonate (CaCO₃) and CaCO₃/calcium sulfate (CaSO₄) composite at 100 and 120 °C in the absence and presence of low-molar-mass (Mn ≤ 2000) poly(acrylic acid) (PAA) with different end groups. The IECOFS responded only to deposition and growth processes on the fiber surface rather than changes occurring in the bulk of the solution. Hexyl isobutyrate-terminated PAA (Mn = 1400) and hexadecyl isobutyrate-terminated PAA (Mn = 1700) were the most effective species in preventing CaCO₃ deposition. Phase transformation from vaterite to aragonite/calcite decreased with increasing hydrophobicity of the PAA end group. Low-molar-mass PAA at 10 ppm showed very significant inhibition of CaCO₃/CaSO₄ composite formation for all end groups investigated.
Publication Type: Journal Article
Source of Publication: Industrial & Engineering Chemistry Research, 53(21), p. 8793-8803
Publisher: American Chemical Society
Place of Publication: United States of America
ISSN: 1520-5045
0888-5885
Fields of Research (FoR) 2008: 030307 Theory and Design of Materials
030304 Physical Chemistry of Materials
030301 Chemical Characterisation of Materials
Fields of Research (FoR) 2020: 340307 Structure and dynamics of materials
340302 Macromolecular materials
340301 Inorganic materials (incl. nanomaterials)
Socio-Economic Objective (SEO) 2008: 970103 Expanding Knowledge in the Chemical Sciences
861501 Industrial Instruments
860602 Inorganic Industrial Chemicals
Socio-Economic Objective (SEO) 2020: 280105 Expanding knowledge in the chemical sciences
241001 Industrial instruments
240906 Inorganic industrial chemicals
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article

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