The overgrowth of vaterite on functionalized styrene-butadiene copolymer

Precipitation of Calcium Carbonate in Porous Media in the Presence of n-Dodecane

“…The precipitation of calcium carbonate in aqueous media has been investigated in the presence of foreign substrates or ions which showed either inhibitory activity with respect to the kinetics of precipitation, − or they stabilized the growth of unstable polymorphs. , Heterogeneous nucleation of calcium carbonate was studied both on calcite and on quartz crystals, over a range of supersaturations, the kinetics being fastest on calcite . The presence of oxalate anions in the supersaturated solutions reduced the crystal growth rate of calcite at pH 8.5 and 25 °C, while the unstable calcium carbonate monohydrate was stabilized .…”

“…The presence of foreign substrates (sodium dodecyl benzenesulfonic acid, SDBS) has also been shown to stabilize vaterite, while in more recent studies particles of nanocalcium-diethylenetriamine penta­(methylenephosphonate) (Ca-DTPMP) showed that they were used to delay calcium carbonate scaling in water treatment processes. Heterogeneous nucleation of calcium carbonate has also been shown to take place on a number of polymers including elastin, styrene–butadiene copolymer, sulfonated polysterene or polystyrene divinylbenzene polymers, and cellulose which stabilized different polymorphs or hydrated salts. The presence of water-miscible alcohols in solutions supersaturated with respect to calcium carbonate has been reported to have different effects from acceleration of the rates of crystal growth to extension of induction times preceding the onset of crystallization. , …”

Formation of calcite with stepped (104) face under control of poly (ethylene glycol)-b-poly (l-leucine) at the air–solution interface

“…33,34 The polarity of the CLO bond in polyleucine block led to the shift of the negative charge toward the oxygen atom. [35][36][37] The polymer could be temporarily adsorbed on the crystal face by weak electrostatic interactions between the negatively charged oxygen atom in CLO bond and positively charged Ca 2+ . The attachment of the polymer would limit the ion transport of Ca 2+ and CO 3 22 from the mother solution to the crystal faces.…”

Calcite crystallization on oxadiazole-terpyridine copolymer

“…Polymers containing functional groups have been found to nucleate calcium carbonate [4,5]. Results obtained by using a number of polymeric substrates [4][5][6][7][8][9] were explained by the assumption that the nucleation of a crystalline salt on a polymer is preceded by the formation of surface ion pairs.…”