Browse > Article
http://dx.doi.org/10.17702/jai.2011.12.1.001

Study on the Graft Effect in Emulsion Polymerization of Poly(vinyl acetate-co-ethylene) Using Poly(vinyl alcohol) as Emulsifier  

Choi, Yong-Hae (Wacker Chemicals Korea Inc. No 419, Gyeonggi R&DB Center)
Publication Information
Journal of Adhesion and Interface / v.12, no.1, 2011 , pp. 1-10 More about this Journal
Abstract
An automated reaction calorimeter was used to directly monitor the rate of emulsion polymerization of vinyl acetate using poly(vinyl alcohol) (PVAs) having different degrees of blockiness. By using this technique in conjunction with other off-line measurements of the evolution of particle size distributions, important details of the process were observed. No constant graft rate period was observed for both low and high initial monomer-water ratios. The gel effect was observed for the low monomer-water ratio recipe. The particle size distributions were broad (particle diameter 40~100 nm) and bimodal. Continuous nucleation was observed to be accompanied by 'limited aggregation' and flocculation during the particle growth stages. It was speculated to be due to the occurrence of the extensive 'limited aggregation' and chain transfer to PVA leading to grafting.
Keywords
Vinyl acetate-co-ethylene; PVOH; EVA emulsion; VAE emulsion; adhesive;
Citations & Related Records
연도 인용수 순위
  • Reference
1 D. J. Shaw, Introduction to Colloid and Surface Chemistry, 3rd Ed., Butter-worth, Stoneham, MA (1980).
2 D. H. Napper, Polymeric Stabilization of Colloidal Dispersions, Academic Press, San Diego (1983)
3 N. Pramojaney, Ph.D Dissertation, Lehigh University (1982)
4 C. A. Finch, Polyvinyl Alcohol: Properties and Applications, John Wiley & Sons, New York (1973).
5 A. S. Dunn, in emulsion Polymerization of Vinyl Acetate, M. S. El-Aasser, and J. W. Vanderhoff, Eds., Applied Science Publishers, New York, p.11 (1981)
6 F. D. Hartley, J. Polym. Sci., 34, 397 (1959).   DOI
7 C. M. Gilmore, G. W Poehlein, and F. J. Schork, J. Appl. Polym. Sci., 48, 1449 (1993).   DOI   ScienceOn
8 A. S. Dunn, The Pecularities of Polyvinyl Alcohol in M.S. El-Aasser, Ed., 11th Annual Short Course Notes: Advances in the emulsion Polymerization and Latex Technology, Vol II, emulsion Polymers Institute, Lehigh University (1980).
9 J. T. O'Donnell, R. B. Mesobrian, and A. E. Woodward, J. Polym. Sci., 28, 171 (1958).   DOI
10 E. V. Gulbekian and G. E. J. Reynolds, Polyvinyl Alcohol in emulsion Polymeri-zation, in Finch, C.A., Ed, Polyvinyl Alcohol: Properties and Applications, p. 427, John Wiley & Sons, New York (1973).
11 W. V. Smith and R. H. Ewart, J. Chem. Phys., 16, 592 (1948).   DOI
12 H. De Bruyn, R. G. Gilbert, and M. J. Ballard, Macromolecules, 29, 8666 (1996).   DOI   ScienceOn
13 V. Stannett, A. Klein, and M. Litt, Br. Polym. J., 7, 139 (1975).   DOI
14 N. Friis and L. Nyhagen, J. Appl. Polym. Sci., 17, 2311 (1973).   DOI
15 N. Friis and A. E. Hamielec, Gel Effect in emulsion Polymerization of Vinyl Monomers; in Piirma, I. and Gardon, J. L., Eds., emulsion Polymerization: ACS Symp. Ser. No. 24, p. 102, ACS, Washington D.C. (1976).
16 R. L. Zollars, J. Appl. Polym. Sci., 24, 1353 (1979).   DOI   ScienceOn
17 V. Dimonie, D. Donescu, M. Munteanu, C. Hagiopol, and I. Gavat, Rev. Romaine Chimie, 19:5, 903 (1974).
18 M. Nomura, M. Harada, W. Eguchi, and S. Nagata, Kinetics and Mechanisms of the emulsion Polymerization of Vinyl Acetate; in Piirma, I. and Gardon, J.L., Eds., emulsion Polymerization: ACS Symp. Ser. No. 24, p. 102, ACS, Washington D.C. (1976).
19 M. Litt, R. Patsiga, and V. Stannett, J. Polym. Sci., Part A 1, 8, 3607 (1970).   DOI
20 C. S. Chern and G. W. Poehlein, J. Appl. Polym. Sci., 33, 2117 (1987).   DOI   ScienceOn
21 D. M. French, J. Polym. Sci., 32, 395 (1961).
22 J. T. O'Donnell, R. B. Mesrobian, and A. E. Woodward, J. Polym. Sci., 28, 171 (1958).   DOI
23 D. J. Shaw, Introduction to Colloid and Surface Chemistry, 3rded., Butter-worth, Stoneham, N.Y., USA (1980).
24 C. M. Gilmore, G. W. Poehlein, and F. J. Schork, J. Appl. Polym. Sci., 48, 1449 (1993).   DOI   ScienceOn
25 A. S. Dunn, The Pecularities of Polyvinyl Alcohol in M.S. El-Aasser, Ed., 11th Annual Short Course Notes : Advances in the emulsion Polymerization and Latex Technology, Vol II, emulsion Polymers Institute, Lehigh University (1980).
26 J. T. O'Donnell, R. B. Mesobrian, and A. E. Woodward, J. Polym. Sci., 28, 171 (1958).   DOI
27 E. V. Gulbekian and G. E. Reynolds, Polyvinyl Alcohol in emulsion Polymerization, John Wiley and Sons., N.Y., USA, 427 (1973).