BLENDS OF POLY(VINYL PYRIDINE)S AND DIHYDRIC PHENOLS: THERMAL AND INFRARED SPECTROSCOPIC STUDIES. PART V

ABSTRACT Binary blends with poly(4-vinyl pyridine) (P4VPy) 160,000 g/mol and poly(2-vinyl pyridine) (P2VPy) 159,000 g/mol as polymer components and 4,4’-thiodiphenol (TDP), 4,4’-methylendiphenol (MDP), 2,2’-biphenol (22BP) and 4,4’-biphenol (44BP) as low molec...

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Autores principales:	Gatica,Nicolás, Medina,Francisco, Moraga,Constanza, Vergara,Loreto
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2019
Materias:	Polymer blends poly(vinylpyridine)s low molecular weight compounds hydrogen bond miscibility
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072019000304575
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spelling	oai:scielo:S0717-970720190003045752019-11-06BLENDS OF POLY(VINYL PYRIDINE)S AND DIHYDRIC PHENOLS: THERMAL AND INFRARED SPECTROSCOPIC STUDIES. PART VGatica,NicolásMedina,FranciscoMoraga,ConstanzaVergara,Loreto Polymer blends poly(vinylpyridine)s low molecular weight compounds hydrogen bond miscibility ABSTRACT Binary blends with poly(4-vinyl pyridine) (P4VPy) 160,000 g/mol and poly(2-vinyl pyridine) (P2VPy) 159,000 g/mol as polymer components and 4,4’-thiodiphenol (TDP), 4,4’-methylendiphenol (MDP), 2,2’-biphenol (22BP) and 4,4’-biphenol (44BP) as low molecular weight compounds (LMWCs), were prepared. Miscibility between the components was analyzed by Fourier Transform Infrared Spectroscopy (FTIR) and Differential Scanning Calorimetry (DSC). Thermogravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM) were also used as complementary techniques. Hydrogen bonding formation was detected by FTIR due to the increasing of the wave number corresponding to the deformation absorption of pyridine groups in P4VPy and P2VPy. A decreasing of melting points and fusion heats of the LMWCs is observed by DSC, which shows a lower crystallinity level as the blends are richer in the polymer component as a consequence of the intermolecular interaction. A plasticizing effect is also observed by DSC when P4VPy is blended with TDP and MDP; the higher steric hindrance prevents this effect when P2VPy is blended with 22BP and 44BP. Miscible blends were obtained with a moderate trend to a higher interaction degree in blends containing P4VPy. This report is the fifth part of a series of works including polymer-LMWC blends. Variables such as molecular weight increase in P4VPy and steric hindrance in P2VPy have been comparatively analyzed with blends previously reported.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.64 n.3 20192019-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072019000304575en10.4067/S0717-97072019000304575
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Polymer blends poly(vinylpyridine)s low molecular weight compounds hydrogen bond miscibility
spellingShingle	Polymer blends poly(vinylpyridine)s low molecular weight compounds hydrogen bond miscibility Gatica,Nicolás Medina,Francisco Moraga,Constanza Vergara,Loreto BLENDS OF POLY(VINYL PYRIDINE)S AND DIHYDRIC PHENOLS: THERMAL AND INFRARED SPECTROSCOPIC STUDIES. PART V
description	ABSTRACT Binary blends with poly(4-vinyl pyridine) (P4VPy) 160,000 g/mol and poly(2-vinyl pyridine) (P2VPy) 159,000 g/mol as polymer components and 4,4’-thiodiphenol (TDP), 4,4’-methylendiphenol (MDP), 2,2’-biphenol (22BP) and 4,4’-biphenol (44BP) as low molecular weight compounds (LMWCs), were prepared. Miscibility between the components was analyzed by Fourier Transform Infrared Spectroscopy (FTIR) and Differential Scanning Calorimetry (DSC). Thermogravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM) were also used as complementary techniques. Hydrogen bonding formation was detected by FTIR due to the increasing of the wave number corresponding to the deformation absorption of pyridine groups in P4VPy and P2VPy. A decreasing of melting points and fusion heats of the LMWCs is observed by DSC, which shows a lower crystallinity level as the blends are richer in the polymer component as a consequence of the intermolecular interaction. A plasticizing effect is also observed by DSC when P4VPy is blended with TDP and MDP; the higher steric hindrance prevents this effect when P2VPy is blended with 22BP and 44BP. Miscible blends were obtained with a moderate trend to a higher interaction degree in blends containing P4VPy. This report is the fifth part of a series of works including polymer-LMWC blends. Variables such as molecular weight increase in P4VPy and steric hindrance in P2VPy have been comparatively analyzed with blends previously reported.
author	Gatica,Nicolás Medina,Francisco Moraga,Constanza Vergara,Loreto
author_facet	Gatica,Nicolás Medina,Francisco Moraga,Constanza Vergara,Loreto
author_sort	Gatica,Nicolás
title	BLENDS OF POLY(VINYL PYRIDINE)S AND DIHYDRIC PHENOLS: THERMAL AND INFRARED SPECTROSCOPIC STUDIES. PART V
title_short	BLENDS OF POLY(VINYL PYRIDINE)S AND DIHYDRIC PHENOLS: THERMAL AND INFRARED SPECTROSCOPIC STUDIES. PART V
title_full	BLENDS OF POLY(VINYL PYRIDINE)S AND DIHYDRIC PHENOLS: THERMAL AND INFRARED SPECTROSCOPIC STUDIES. PART V
title_fullStr	BLENDS OF POLY(VINYL PYRIDINE)S AND DIHYDRIC PHENOLS: THERMAL AND INFRARED SPECTROSCOPIC STUDIES. PART V
title_full_unstemmed	BLENDS OF POLY(VINYL PYRIDINE)S AND DIHYDRIC PHENOLS: THERMAL AND INFRARED SPECTROSCOPIC STUDIES. PART V
title_sort	blends of poly(vinyl pyridine)s and dihydric phenols: thermal and infrared spectroscopic studies. part v
publisher	Sociedad Chilena de Química
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072019000304575
work_keys_str_mv	AT gaticanicolas blendsofpolyvinylpyridinesanddihydricphenolsthermalandinfraredspectroscopicstudiespartv AT medinafrancisco blendsofpolyvinylpyridinesanddihydricphenolsthermalandinfraredspectroscopicstudiespartv AT moragaconstanza blendsofpolyvinylpyridinesanddihydricphenolsthermalandinfraredspectroscopicstudiespartv AT vergaraloreto blendsofpolyvinylpyridinesanddihydricphenolsthermalandinfraredspectroscopicstudiespartv
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BLENDS OF POLY(VINYL PYRIDINE)S AND DIHYDRIC PHENOLS: THERMAL AND INFRARED SPECTROSCOPIC STUDIES. PART V

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