Optical rotation kinetics study of the polycondensation of chiral sol-gel precursors

Orit Cohen; Dmitri Gelman; David Avnir

doi:10.1007/s10971-018-4858-9

Optical rotation kinetics study of the polycondensation of chiral sol-gel precursors

Orit Cohen, Dmitri Gelman, David Avnir

Institute of Chemistry

The Hebrew University of Jerusalem

Research output: Contribution to journal › Article › peer-review

Abstract

We show that the polycondensation of chiral sol-gel precursors can be efficiently followed up by optical rotation measurements. Three silanes were studied, namely, the hexaethoxysilane derivatives of l-threonine, l-isoleucine, and dimethyl-l-tartrate. Two main sol-gel polycondensation mechanisms were identified, namely, linear kinetics product growth and second-order cluster–cluster growth. Dynamic light scattering measurements are used to support the proposed mechanisms. [Figure not available: see fulltext.].

Original language	English
Pages (from-to)	149-154
Number of pages	6
Journal	Journal of Sol-Gel Science and Technology
Volume	90
Issue number	1
DOIs	https://doi.org/10.1007/s10971-018-4858-9
State	Published - 15 Apr 2019

Keywords

Chiral sol-gels
Kinetics
Optical rotation
Sol-gel precursors

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
General Chemistry
Condensed Matter Physics
Ceramics and Composites
Materials Chemistry
Biomaterials

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10.1007/s10971-018-4858-9

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abstract = "We show that the polycondensation of chiral sol-gel precursors can be efficiently followed up by optical rotation measurements. Three silanes were studied, namely, the hexaethoxysilane derivatives of l-threonine, l-isoleucine, and dimethyl-l-tartrate. Two main sol-gel polycondensation mechanisms were identified, namely, linear kinetics product growth and second-order cluster–cluster growth. Dynamic light scattering measurements are used to support the proposed mechanisms. [Figure not available: see fulltext.].",

keywords = "Chiral sol-gels, Kinetics, Optical rotation, Sol-gel precursors",

author = "Orit Cohen and Dmitri Gelman and David Avnir",

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T1 - Optical rotation kinetics study of the polycondensation of chiral sol-gel precursors

AU - Cohen, Orit

AU - Gelman, Dmitri

AU - Avnir, David

PY - 2019/4/15

Y1 - 2019/4/15

N2 - We show that the polycondensation of chiral sol-gel precursors can be efficiently followed up by optical rotation measurements. Three silanes were studied, namely, the hexaethoxysilane derivatives of l-threonine, l-isoleucine, and dimethyl-l-tartrate. Two main sol-gel polycondensation mechanisms were identified, namely, linear kinetics product growth and second-order cluster–cluster growth. Dynamic light scattering measurements are used to support the proposed mechanisms. [Figure not available: see fulltext.].

AB - We show that the polycondensation of chiral sol-gel precursors can be efficiently followed up by optical rotation measurements. Three silanes were studied, namely, the hexaethoxysilane derivatives of l-threonine, l-isoleucine, and dimethyl-l-tartrate. Two main sol-gel polycondensation mechanisms were identified, namely, linear kinetics product growth and second-order cluster–cluster growth. Dynamic light scattering measurements are used to support the proposed mechanisms. [Figure not available: see fulltext.].

KW - Chiral sol-gels

KW - Kinetics

KW - Optical rotation

KW - Sol-gel precursors

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U2 - 10.1007/s10971-018-4858-9

DO - 10.1007/s10971-018-4858-9

M3 - مقالة

SN - 0928-0707

VL - 90

SP - 149

EP - 154

JO - Journal of Sol-Gel Science and Technology

JF - Journal of Sol-Gel Science and Technology

IS - 1

ER -

Optical rotation kinetics study of the polycondensation of chiral sol-gel precursors

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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