Study of the specific entropy of poly (α-n-ALKYL) methacrylates adsorbed on alumina or silica by inverse gas chromatography (IGC)

Tayssir Hamieh

doi:10.1080/1539445X.2010.521608

Study of the specific entropy of poly (α-n-ALKYL) methacrylates adsorbed on alumina or silica by inverse gas chromatography (IGC)

Tayssir Hamieh^*

^*Corresponding author for this work

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

Abstract

This article constitutes a new contribution on the study of the specific entropy of poly(alpha-n-alkyl) methacrylates adsorbed on silica or alumina and when they are in their bulk phases for different alkyl groups inside chain of the polymer by using inverse gas chromatography (IGC) technique. The free enthalpy of adsorption of polymers used in this study was calculated for several polar molecules for various temperatures. This makes it possible to obtain the specific enthalpy and specific entropy of the polar probes adsorbed on these polymers in their adsorbed state on alumina and silica or in their bulk phase. Results obtained proved an important effect of the length of alkyl group inside chain of poly(alpha-n-alkyl) methacrylates on the specific entropy.

Original language	English
Pages (from-to)	15-31
Number of pages	17
Journal	Soft Materials
Volume	9
Issue number	1
DOIs	https://doi.org/10.1080/1539445X.2010.521608
Publication status	Published - 2011
Externally published	Yes

Keywords

Adsorption
Monolayer
Poly(alpha-n-alkyl)methacrylate
Specific entropy
CHARACTERIZE PHYSICOCHEMICAL PROPERTIES
FREE-ENERGY CHARACTERISTICS
INFINITE DILUTION II
ACID-BASE PROPERTIES
SHORT GLASS-FIBERS
SURFACE-PROPERTIES
2ND-ORDER TRANSITIONS
SOLID CHROMATOGRAPHY
KAOLINITES
MOLECULES

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10.1080/1539445X.2010.521608

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title = "Study of the specific entropy of poly (α-n-ALKYL) methacrylates adsorbed on alumina or silica by inverse gas chromatography (IGC)",

abstract = "This article constitutes a new contribution on the study of the specific entropy of poly(alpha-n-alkyl) methacrylates adsorbed on silica or alumina and when they are in their bulk phases for different alkyl groups inside chain of the polymer by using inverse gas chromatography (IGC) technique. The free enthalpy of adsorption of polymers used in this study was calculated for several polar molecules for various temperatures. This makes it possible to obtain the specific enthalpy and specific entropy of the polar probes adsorbed on these polymers in their adsorbed state on alumina and silica or in their bulk phase. Results obtained proved an important effect of the length of alkyl group inside chain of poly(alpha-n-alkyl) methacrylates on the specific entropy.",

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author = "Tayssir Hamieh",

year = "2011",

doi = "10.1080/1539445X.2010.521608",

language = "English",

volume = "9",

pages = "15--31",

journal = "Soft Materials",

issn = "1539-445X",

publisher = "Routledge/Taylor \& Francis Group",

number = "1",

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TY - JOUR

T1 - Study of the specific entropy of poly (α-n-ALKYL) methacrylates adsorbed on alumina or silica by inverse gas chromatography (IGC)

AU - Hamieh, Tayssir

PY - 2011

Y1 - 2011

N2 - This article constitutes a new contribution on the study of the specific entropy of poly(alpha-n-alkyl) methacrylates adsorbed on silica or alumina and when they are in their bulk phases for different alkyl groups inside chain of the polymer by using inverse gas chromatography (IGC) technique. The free enthalpy of adsorption of polymers used in this study was calculated for several polar molecules for various temperatures. This makes it possible to obtain the specific enthalpy and specific entropy of the polar probes adsorbed on these polymers in their adsorbed state on alumina and silica or in their bulk phase. Results obtained proved an important effect of the length of alkyl group inside chain of poly(alpha-n-alkyl) methacrylates on the specific entropy.

AB - This article constitutes a new contribution on the study of the specific entropy of poly(alpha-n-alkyl) methacrylates adsorbed on silica or alumina and when they are in their bulk phases for different alkyl groups inside chain of the polymer by using inverse gas chromatography (IGC) technique. The free enthalpy of adsorption of polymers used in this study was calculated for several polar molecules for various temperatures. This makes it possible to obtain the specific enthalpy and specific entropy of the polar probes adsorbed on these polymers in their adsorbed state on alumina and silica or in their bulk phase. Results obtained proved an important effect of the length of alkyl group inside chain of poly(alpha-n-alkyl) methacrylates on the specific entropy.

KW - Adsorption

KW - Monolayer

KW - Poly(alpha-n-alkyl)methacrylate

KW - Specific entropy

KW - CHARACTERIZE PHYSICOCHEMICAL PROPERTIES

KW - FREE-ENERGY CHARACTERISTICS

KW - INFINITE DILUTION II

KW - ACID-BASE PROPERTIES

KW - SHORT GLASS-FIBERS

KW - SURFACE-PROPERTIES

KW - 2ND-ORDER TRANSITIONS

KW - SOLID CHROMATOGRAPHY

KW - KAOLINITES

KW - MOLECULES

U2 - 10.1080/1539445X.2010.521608

DO - 10.1080/1539445X.2010.521608

M3 - Article

SN - 1539-445X

VL - 9

SP - 15

EP - 31

JO - Soft Materials

JF - Soft Materials

IS - 1

ER -

Study of the specific entropy of poly (α-n-ALKYL) methacrylates adsorbed on alumina or silica by inverse gas chromatography (IGC)

Abstract

Keywords

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