[KSCI] Korea Science Citation Index Service

Preparation of Polyurea Microcapsule by Interfacial Polymerization -Influence of Isocyanate Structure on the Yield and Thermal Properties of Obtained Microcapsules-

Lee, Dong-Sun (기능성고분자신소재연구센터, 한양대학교 섬유고분자공학과)
Cho, Chang-Gi (기능성고분자신소재연구센터, 한양대학교 섬유고분자공학과)

Publication Information

Textile Science and Engineering / v.39, no.5, 2002 , pp. 525-531 More about this Journal

Abstract

In this study, a series of polyurea microcapsules were prepared by interfacial polyconden-sation using various isocyanates as the oil soluble monomer and diethylenetriamine as the water soluble monomer. Nonionic surfactant, NP-10, was used as an emulsifier. The yields of microcapsules from aliphatic isocyanates were higher than those of microcapsules from aromatic isocyanates due to the flexibility of the aliphatic chains. Polyurea microcapsules obtained from aliphatic isocyanates were stable well above 25 $0^{\circ}C$ and showed better thermal stability compared to those obtained from aromatic analogs.

Keywords

microcapsule; isocyanate; polyurea; stability; diethyleneriamine;

Citations & Related Records

Reference

1	Polyurea Microcapsules with Different Structures: preparation and Properties / [ K. Hong;S. Park ] / J. Appl Polym. ScI. ScienceOn
2	Microencapsulation of Pesticides by Interfacial Polymerization Utilizing Isocynate or Aminoplast Chemistry / [ H. B. Scher;M. Rodson;K. Lee ] / Pestic. Sci. ScienceOn
3	Preparation of Nano- and Microspheres by Polycondensation Techniques / [ R. Arshady ] / J. Microencapsul.
4	Encapsulation by Interfacial Polycondensation(III)-Microencapsulation: the Influence of Process Conditions on Wall Permeability / [ L. J. J. M. Janssen;A. Boersma;K. te Nijenhuis ] / J. Membr. Sci.
5	Microencapsulation of Octadecane as a Phase Change Material by Interfacial Polymerization in Emulsion System / [ J. S. Cho;A. Kwon;C. G. Cho ] / Colloid and Polym. Sci. ScienceOn
6	/ [ J. E. Vandegaer ] / Microencapsulation: Processes and Applications
7	/ [ R. Arshady(Ed.) ] / Microspheres Microcapsules & Liposomes
8	Microencapsulation of Water-soluble Herbicide by Interfacial Reaction(I)-Characterization of Microencapsulation / [ C. Yeom;S. Oh;J. Rhim;J. Lee ] / J. Appl. Polym. Sci. ScienceOn
9	/ [ S. Benita ] / Microencapsulation: Methods and Industrial Applications
10	/ [ C. I. Chiriac ] / Encyclopedia of Polymer Science and Engineering
11	Microencpapsulation in Polyurea Shell by Interfacial Polycondensation / [ S. K. Yadav;A. K. Suresh;K. C. Khilar ] / AIChE J.
12	Encapsulation by Interfacial Polycondensation(II)-The Membrane Wall Structure and Rate of the Wall Growth / [ L. J. J. M. Janssen;K. te Nijenhuis ] / J. Membr. Sci.
13	/ [ J. Y. Choi;K. S. Min;I. W. Park;K. S. Kim;T. Chang ] / Polymer(Korea)
14	Encapsulation by Interfacial Polycondensation(I)-The Capsule Production and Model for Wall Growth / [ L. J. J. M. Janssen;K. te Nijenhuis ] / J. Membr. Sci. ScienceOn
15	Encyclopedia of Polymer Science and Engineering / [ C. Thies ] / Encyclopedia of Polymer Science and Engineering
16	Influence of the Parameters of Encapsulation Process and of the tructure of Diisocyanates on the Release of Codeine from Resinate Encapsulated in Polyurea by interfacial Water Promoted Polyreaction / [ J. Lukaszczyk;P. Urbas ] / React. Polym. ScienceOn