Preparation of core-shell coagulates by hydrophobic heterocoagulation of micron-sized poly(methyl methacrylate) and submicron-sized poly(styrene) particles

被引：17

作者：

Taniguchi, Tatsuo ^{[1
]}

Ogawa, Tatsuya ^{[1
]}

Kamata, Yoshitada ^{[1
]}

Kobaru, Shotaro ^{[1
]}

Takeuchi, Naoki ^{[1
]}

Kohri, Michinari ^{[1
]}

Nakahira, Takayuki ^{[1
]}

Wakiya, Takeshi ^{[2
]}

机构：

[1] Chiba Univ, Grad Sch Engn, Div Appl Chem & Biotechnol, Inage Ku, Chiba 2638522, Japan

[2] Sekisui Chem Co Ltd, Osaka 6188589, Japan

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2010年 / 356卷 / 1-3期

关键词：

Core-shell; Heterocoagulates; Glass transition temperature; Fluorescence resonance energy transfer; COMPOSITE POLYMER PARTICLES; STEPWISE HETEROCOAGULATION; LATEX-PARTICLES; EMULSION; MICROSPHERES; MORPHOLOGY; FILM; SUSPENSION; DIFFUSION; SURFACES;

D O I：

10.1016/j.colsurfa.2010.01.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Core-shell coagulates were prepared by hydrophobic heterocoagulation between non-charged poly(methyl methacrylate) (PMMA) core and cationically charged polystyrene (PSt) shell particles. Addition of NaCl and elevation of coagulation temperature to the vicinity of the glass transition temperature (T-g) of the shell particles are found to be keys to successful heterocoagulation. Fluorescence resonance energy transfer (FRET) experiments using pyrene-labeled core and naphthalene-labeled shell particles showed that interdiffusion of the polymer chains at the interface between the core and shell particles is most effective when coagulates were prepared at or slightly above the T(g)s of both core and shell particles. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：169 / 175

页数：7

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