Calcite nucleation on the surface of PNIPAM-PAAc micelles studied by time resolved in situ PXRD

Anders C. S. Jensen; Mogens Hinge; Henrik Birkedal

doi:10.1039/c5ce00424a

Calcite nucleation on the surface of PNIPAM-PAAc micelles studied by time resolved in situ PXRD

Anders C. S. Jensen^*
, Mogens Hinge
, Henrik Birkedal

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

10 Citations (Scopus)

Abstract

Biominerals such as CaCO3 have been studied extensively in an effort to replicate materials found in nature. But understanding and controlling the formation of CaCO3 has proved a challenge for example in regards to control over crystallite size. The formation of pure calcite has been studied to some degree and a myriad of materials were made utilizing organic additives to control morphology, polymorphism and crystallite size. In this work, these aspects were combined by applying PNIPAM-b-PAAc micelles as control agents for calcite crystallization. The crystallization mechanism in this system was studied by time resolved in situ PXRD. This revealed that crystalline nanoplatelets of calcite were formed on the surface of the polymer particles. Higher concentration of polymer leads to purely crystalline calcite nanoplatelets with complete inhibition of growth of larger crystallites.

Original language	English
Journal	CrystEngComm
Volume	17
Issue	36
Pages (from-to)	6940-6946
Number of pages	7
ISSN	1466-8033
DOIs	https://doi.org/10.1039/c5ce00424a
Publication status	Published - 2015

Keywords

BLOCK-COPOLYMERS
GROWTH-KINETICS
CRYSTAL-GROWTH
CARBONATE
CRYSTALLIZATION
CACO3
BIOMINERALIZATION
MINERALIZATION
TRANSFORMATION
PARTICLES

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@article{a6f0ded1df204ff7bc2cef45da897aec,

title = "Calcite nucleation on the surface of PNIPAM-PAAc micelles studied by time resolved in situ PXRD",

abstract = "Biominerals such as CaCO3 have been studied extensively in an effort to replicate materials found in nature. But understanding and controlling the formation of CaCO3 has proved a challenge for example in regards to control over crystallite size. The formation of pure calcite has been studied to some degree and a myriad of materials were made utilizing organic additives to control morphology, polymorphism and crystallite size. In this work, these aspects were combined by applying PNIPAM-b-PAAc micelles as control agents for calcite crystallization. The crystallization mechanism in this system was studied by time resolved in situ PXRD. This revealed that crystalline nanoplatelets of calcite were formed on the surface of the polymer particles. Higher concentration of polymer leads to purely crystalline calcite nanoplatelets with complete inhibition of growth of larger crystallites.",

keywords = "BLOCK-COPOLYMERS, GROWTH-KINETICS, CRYSTAL-GROWTH, CARBONATE, CRYSTALLIZATION, CACO3, BIOMINERALIZATION, MINERALIZATION, TRANSFORMATION, PARTICLES",

author = "Jensen, \{Anders C. S.\} and Mogens Hinge and Henrik Birkedal",

year = "2015",

doi = "10.1039/c5ce00424a",

language = "English",

volume = "17",

pages = "6940--6946",

journal = "CrystEngComm",

issn = "1466-8033",

publisher = "Royal Society of Chemistry",

number = "36",

}

TY - JOUR

T1 - Calcite nucleation on the surface of PNIPAM-PAAc micelles studied by time resolved in situ PXRD

AU - Jensen, Anders C. S.

AU - Hinge, Mogens

AU - Birkedal, Henrik

PY - 2015

Y1 - 2015

N2 - Biominerals such as CaCO3 have been studied extensively in an effort to replicate materials found in nature. But understanding and controlling the formation of CaCO3 has proved a challenge for example in regards to control over crystallite size. The formation of pure calcite has been studied to some degree and a myriad of materials were made utilizing organic additives to control morphology, polymorphism and crystallite size. In this work, these aspects were combined by applying PNIPAM-b-PAAc micelles as control agents for calcite crystallization. The crystallization mechanism in this system was studied by time resolved in situ PXRD. This revealed that crystalline nanoplatelets of calcite were formed on the surface of the polymer particles. Higher concentration of polymer leads to purely crystalline calcite nanoplatelets with complete inhibition of growth of larger crystallites.

AB - Biominerals such as CaCO3 have been studied extensively in an effort to replicate materials found in nature. But understanding and controlling the formation of CaCO3 has proved a challenge for example in regards to control over crystallite size. The formation of pure calcite has been studied to some degree and a myriad of materials were made utilizing organic additives to control morphology, polymorphism and crystallite size. In this work, these aspects were combined by applying PNIPAM-b-PAAc micelles as control agents for calcite crystallization. The crystallization mechanism in this system was studied by time resolved in situ PXRD. This revealed that crystalline nanoplatelets of calcite were formed on the surface of the polymer particles. Higher concentration of polymer leads to purely crystalline calcite nanoplatelets with complete inhibition of growth of larger crystallites.

KW - BLOCK-COPOLYMERS

KW - GROWTH-KINETICS

KW - CRYSTAL-GROWTH

KW - CARBONATE

KW - CRYSTALLIZATION

KW - CACO3

KW - BIOMINERALIZATION

KW - MINERALIZATION

KW - TRANSFORMATION

KW - PARTICLES

U2 - 10.1039/c5ce00424a

DO - 10.1039/c5ce00424a

M3 - Journal article

SN - 1466-8033

VL - 17

SP - 6940

EP - 6946

JO - CrystEngComm

JF - CrystEngComm

IS - 36

ER -

Calcite nucleation on the surface of PNIPAM-PAAc micelles studied by time resolved in situ PXRD

Abstract

Keywords

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