Control of calcium carbonate crystallization by using anionic polymethylsiloxanes as templates

Neira-Carrillo, Andrónico; Vásquez-Quitral, Patricio; Díaz, María Asunción Romero; Fernández, María Soledad; Arias, José L.; Yazdani‐Pedram, Mehrdad

doi:10.1016/j.jssc.2012.05.039

Cited by 14 publications

(9 citation statements)

References 95 publications

(117 reference statements)

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“…In this regard, it is demonstrated that the nature of glycosidic linkages, polarity, ion binding sites and stereochemistry has strong influence on CaCO 3 crystallization [13]. With this in mind and following our previous results, here we used an alginate (ALG) sample obtained from Chilean brown algae Lessonia nigrescens (ALG Les) in order to add more experimental evidence to the relationship between PS and IPS [12,[14][15][16]. In this work, we investigated the direct effect of ALG Les, extracted from a natural brown algae located in north of Chile, on early stages of CaCO 3 mineralization.…”

Section: Introductionmentioning

confidence: 93%

Effect of Alginate from Chilean Lessonia nigrescens and MWCNTs on CaCO3 Crystallization by Classical and Non-Classical Methods

et al. 2018

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Abstract:In our crystallization experiments, the influence of alginate from Chilean Lessonia nigrescens and functionalized multi-walled carbon nanotubes (MWCNTs) was tested through electrocrystallization (EC) and gas diffusion (GD) methods on the crystal growth of calcium carbonate (CaCO 3 ) and their possible stabilization of proto-structures in amorphous CaCO 3 (ACC) state through pre-nucleation clusters (PNC) essays with automatic potentiometric titrations were performed. CaCO 3 crystals obtained in the in vitro above-mentioned crystallization systems were characterized by scanning electron microscope (SEM), energy-dispersive X-ray spectrometry (EDS) and powder X-ray diffractometer (XRD). Our experimental findings showed that ALG and functionalized MWCNTs stabilized truncated and agglomerated vaterite-like particles through GD and EC methods. While, on the other hand, we obtained qualitative information about induction or inhibition of CaCO 3 nucleation that was provided by potentiometric titrations.

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Section: Introductionmentioning

confidence: 93%

Effect of Alginate from Chilean Lessonia nigrescens and MWCNTs on CaCO3 Crystallization by Classical and Non-Classical Methods

et al. 2018

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“…It is known that the crystallization mechanism of biominerals can change due to polar functional groups such as -CO 2 H, -PO 3 H, -SO 3 H. 27,28 Even if the functional groups are present in low concentrations, they have enormous effects on the growth, nucleation, morphology, and polymorphism of the crystals. The required first step of a) a) b) SEM analysis also confirmed the morphological changes.…”

Section: Characterization Of the Particlesmentioning

confidence: 99%

“…The nucleation and crystal growth of the calcite and vaterite was affected by the introduction of PVS. 27 Meng et al explained morphological changes by the adsorption of sulfonic groups on calcium carbonate. 30 The interactions between PVS and crystals may result in the phase transformation of calcite to vaterite.…”

Section: Sem Pictures Of the Compositesmentioning

confidence: 99%

Oxygen Barrier and Thermomechanical Properties of Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) Biocomposites Reinforced with Calcium Carbonate Particles

Kırboğa

Öner

2020

ACSi

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This study aimed to prepare poly (3-hydroxybutyrate-co-3-hydroxyvalerate), biocomposites with incorporating various percentages of calcium carbonate using extrusion processing. Calcium carbonate was synthesized in the absence and presence of poly(vinyl sulfonic acid). The polymorph and morphology of calcium carbonate chanced with the introduction of poly(vinyl sulfonic acid). The rhombohedral calcite was obtained in the absence of poly(vinyl sulfonic acid). Rhombohedral calcite transformed into spherical vaterite with the addition of poly(vinyl sulfonic acid). The influence of filler contents on the properties of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) composites was studied. The structure and properties of poly (3-hydroxybutyrate-co-3-hydroxyvalerate)/ calcium carbonate biocomposites were investigated by XRD, FTIR, TGA, DSC, SEM, OTR and DMA. The nucleation effect of the calcium carbonate on the crystallization of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) was observed in the DSC and XRD measurements by increasing crystallinity of poly (3-hydroxybutyrate-co-3-hydroxyvalerate). It was shown that the variation of the barrier properties of biocomposites was influenced by polymorph and morphology of calcium carbonate. The addition of 0.5 wt% of the rhombohedral calcite and spherical vaterite increased the barrier properties by 25% and 12%, respectively compared to neat polymer. The dynamic mechanical properties of composites based on rhombohedral calcite and spherical vaterite in poly (3-hydroxybutyrate-co-3-hydroxyvalerate) matrix were investigated. The storage modulus increases by adding both particles in the composites over a wide range of temperature (-30 to 150 °C) where the reinforcing effect of calcite and vaterite was confirmed. At the same loading level, rhombohedral calcite led to more increase in the storage modulus, while less increase in storage modulus was observed in the presence of spherical vaterite particles.

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“…A number of studies have been conducted to explore the influence of organic compounds on nucleation, growth, and morphology of inorganic materials. In order to control the nucleation and growth of the crystallization by mimicking biomineralization, numerous researchers used organic templates and additives such as bio‐ or synthetic‐ macromolecules, double hydrophilic block copolymers , Langmuir monolayers , low‐molecular weight compounds , and polyelectrolytes .…”

Section: Introductionmentioning

confidence: 99%

Biomimetic crystallization of calcium carbonate in the presence of water‐soluble zwitterionic block copolymer

Yazıcı

Karaman

2018

Polymer Engineering & Sci

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Crystallization of calcium carbonate (CC) in aqueous solutions by gas-liquid diffusion procedure was investigated systematically in the presence of poly(4-sulfonic acid diphenylamine)-block-poly(ethylene glycol) (PSDA-b-PEG), wherein the PSDA block is a polymeric zwitterion. PSDAb-PEG was synthesized with the reaction of tosylated PEG and amine-functionalized PSDA and was characterized by nuclear magnetic resonance. The parameters such as, block copolymer concentration, crystallization time and initial pH were considered as indicators of block copolymer's capability in controlling the morphology of CC particles . The particles were characterized by Fourier transform infrared, scanning electron microscopy, and Xray diffraction. The results suggest that PSDA-b-PEG is a suitable template to control the growth mechanism of CC to produce meso-sized particles with different morphologies. POLYM. ENG. SCI., 00:000-000, 2018.

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Control of calcium carbonate crystallization by using anionic polymethylsiloxanes as templates

Cited by 14 publications

References 95 publications

Effect of Alginate from Chilean Lessonia nigrescens and MWCNTs on CaCO3 Crystallization by Classical and Non-Classical Methods

Effect of Alginate from Chilean Lessonia nigrescens and MWCNTs on CaCO3 Crystallization by Classical and Non-Classical Methods

Oxygen Barrier and Thermomechanical Properties of Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) Biocomposites Reinforced with Calcium Carbonate Particles

Biomimetic crystallization of calcium carbonate in the presence of water‐soluble zwitterionic block copolymer

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