Core-shell functional microspheres by dispersion polymerization: 2. Synthesis and characterization

Michele Laus; Caterina Dinnella; Gaetano Lanzarini; Angelo Casagrande

doi:10.1016/0032-3861(96)81108-6

Core-shell functional microspheres by dispersion polymerization: 2. Synthesis and characterization

Michele Laus, Caterina Dinnella, Gaetano Lanzarini, Angelo Casagrande

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

Polystyrene microspheres ranging in diameter from 3 to 10μm were prepared in alcoholic media by dispersion polymerization of styrene in the presence of a methacrylic acid/ethyl acrylate 1:1 statistical copolymer (Eudragit) as the stabilizer precursor. The effects of the initial Eudragit and free radical initiator concentrations on the microsphere dimensions, the microsphere size distribution and surface functionality were investigated. The particle dimensions were found to increase with increasing initiator concentration and decrease with increasing steric stabilizer precursor concentration. The percentage Eudragit in the microspheres was found to increase with the stabilizer precursor concentration and decrease with the initiator concentration. The resulting double-shell microspheres, with specific surface functionalities, are promising as tailor-made supports for biocatalysts.

Lingua originale	Inglese
pagine (da-a)	343-347
Numero di pagine	5
Rivista	Polymer
Volume	37
Numero di pubblicazione	2
DOI	https://doi.org/10.1016/0032-3861(96)81108-6
Stato di pubblicazione	Pubblicato - gen 1996
Pubblicato esternamente	Sì

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10.1016/0032-3861(96)81108-6

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title = "Core-shell functional microspheres by dispersion polymerization: 2. Synthesis and characterization",

abstract = "Polystyrene microspheres ranging in diameter from 3 to 10μm were prepared in alcoholic media by dispersion polymerization of styrene in the presence of a methacrylic acid/ethyl acrylate 1:1 statistical copolymer (Eudragit) as the stabilizer precursor. The effects of the initial Eudragit and free radical initiator concentrations on the microsphere dimensions, the microsphere size distribution and surface functionality were investigated. The particle dimensions were found to increase with increasing initiator concentration and decrease with increasing steric stabilizer precursor concentration. The percentage Eudragit in the microspheres was found to increase with the stabilizer precursor concentration and decrease with the initiator concentration. The resulting double-shell microspheres, with specific surface functionalities, are promising as tailor-made supports for biocatalysts.",

keywords = "Dispersion polymerization, Functional microspheres, Polystyrene",

author = "Michele Laus and Caterina Dinnella and Gaetano Lanzarini and Angelo Casagrande",

note = "Funding Information: This work was supported by the Minister0 dell{\textquoteright}uni-versit$ e della Ricerca Scientifica e Tecnologica of Italy.",

year = "1996",

month = jan,

doi = "10.1016/0032-3861(96)81108-6",

language = "English",

volume = "37",

pages = "343--347",

journal = "Polymer",

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TY - JOUR

T1 - Core-shell functional microspheres by dispersion polymerization

T2 - 2. Synthesis and characterization

AU - Laus, Michele

AU - Dinnella, Caterina

AU - Lanzarini, Gaetano

AU - Casagrande, Angelo

N1 - Funding Information: This work was supported by the Minister0 dell’uni-versit$ e della Ricerca Scientifica e Tecnologica of Italy.

PY - 1996/1

Y1 - 1996/1

N2 - Polystyrene microspheres ranging in diameter from 3 to 10μm were prepared in alcoholic media by dispersion polymerization of styrene in the presence of a methacrylic acid/ethyl acrylate 1:1 statistical copolymer (Eudragit) as the stabilizer precursor. The effects of the initial Eudragit and free radical initiator concentrations on the microsphere dimensions, the microsphere size distribution and surface functionality were investigated. The particle dimensions were found to increase with increasing initiator concentration and decrease with increasing steric stabilizer precursor concentration. The percentage Eudragit in the microspheres was found to increase with the stabilizer precursor concentration and decrease with the initiator concentration. The resulting double-shell microspheres, with specific surface functionalities, are promising as tailor-made supports for biocatalysts.

AB - Polystyrene microspheres ranging in diameter from 3 to 10μm were prepared in alcoholic media by dispersion polymerization of styrene in the presence of a methacrylic acid/ethyl acrylate 1:1 statistical copolymer (Eudragit) as the stabilizer precursor. The effects of the initial Eudragit and free radical initiator concentrations on the microsphere dimensions, the microsphere size distribution and surface functionality were investigated. The particle dimensions were found to increase with increasing initiator concentration and decrease with increasing steric stabilizer precursor concentration. The percentage Eudragit in the microspheres was found to increase with the stabilizer precursor concentration and decrease with the initiator concentration. The resulting double-shell microspheres, with specific surface functionalities, are promising as tailor-made supports for biocatalysts.

KW - Dispersion polymerization

KW - Functional microspheres

KW - Polystyrene

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U2 - 10.1016/0032-3861(96)81108-6

DO - 10.1016/0032-3861(96)81108-6

M3 - Article

SN - 0032-3861

VL - 37

SP - 343

EP - 347

JO - Polymer

JF - Polymer

IS - 2

ER -

Core-shell functional microspheres by dispersion polymerization: 2. Synthesis and characterization

Abstract

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