Fabrication, Structures and Properties of Acrylonitrile/Vinyl Acetate Copolymers and Copolymers Containing Microencapsulated Phase Change Materials

다국어 초록 (Multilingual Abstract)

Acrylonitrile(AN)-Vinyl acetate (VAc) copolymers (AN/VAc) were synthesized by redox polymerization and microencapsulated phase change materials (MicroPCMs) were incorporated at the polymerization step. The effect of VAc monomers and/or the MicroPCMs on composition, melting point (Tm), exothermic peak value (Td),average molecular weight (Mη), crystallinity of the copolymers were examined by Fourier Transform Infrared Spectroscopy (FTIR), Elementary Analysis, Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TG), Ubbelohde viscosimeter and X-ray Diffraction (XRD). The compositions of the AN/VAc agreed well with the feed ratios. The melting peak shifted to a lower temperature (267 oC) with increasing concentration of VAc monomers and/or MicroPCMs, while the exothermic peak shifted to the higher temperature (324 oC). The average molecular weight of the copolymer was approximately 31,000. The crystallinity of the copolymers decreased with increasing content of VAc monomers and/or MicroPCMs.

참고문헌 (Reference)

1 G. Hinrichsen, 20 : 121-, 1974

2 L. Zhang, 25 : 43-, 1999

3 E. Fitzer, 13 : 63-, 1975

4 V. A. Bhanu, 43 : 4841-, 2002

5 D. Godshall, 44 : 4221-, 2003

6 S. R. Hutchinson, 43 : 5143-, 2008

7 A. K. Gupta, 70 : 2703-, 1998

8 B. G. Frushour, 7 : 1-, 1982

9 B. G. Min, 84 : 2505-, 2002

10 Y. F. Fan, 429 : 25-, 2005

11 A. J. Clarke, 243 : 146-, 1973

12 N. Han, 103 : 2776-, 2007

13 N. Han, 23 : 45-, 2007

14 T. Gries, 52 : 232-, 2002

15 X. X. Zhang, 330 : 2004

16 M. You, 472 : 20-, 2008

17 X. X. Zhang, 40 : 3729-, 2005

18 A. Gupta, 34 : 1427-, 1996

19 P. Rangarajan, 43 : 2699-, 2002

20 M. L. Nuckols, 26 : 547-, 1999

21 S. J. Park, 271 : 336-, 2004

22 R. Cox, 48 : 475-, 1998

23 P. Rangarajian, 85 : 69-, 2002

24 X. X. Zhang, 28 : 270-, 2003

25 X. X. Zhang, 88 : 300-, 2004

26 X. M. Tao, "Smart fibres; fabric and clothing" Woodhead Publishing Ltd 2001

27 P. J. Flory, "Principles of Polymer Chemistry" Cornell University Press 1953

28 J. Simitzis, "Polyacrylonitrile" Marcel Dekker 1997

29 O. P. Bahl, "Manufacture of carbon fibres" Marcel Dekker 1998

30 GilsonKhang, "Local Drug Delivery System Using Biodegradable Polymers" 한국고분자학회 11 (11): 207-223, 2003

31 서민강, "Influence of Oxyfluorination on Physicochemical Characteristics of Carbon Fibers and their Reinforced Epoxy Composites" 한국고분자학회 17 (17): 430-435, 2009

32 Dong-Kyu Kim, "Electrospun Polyacrylonitrile Based Carbon Nanofibers and Their Hydrogen Storages" 한국고분자학회 13 (13): 521-528, 2005

33 이종근, "Characterization of Dicyclopentadiene and 5-Ethylidene-2-norbornene asSelf-healing Agents for Polymer Composite and Its Microcapsules" 한국고분자학회 12 (12): 478-483, 2004

34 Y. G. Bryant, "Advances in Heat and Mass Transfer in Biotechnology"

35 J. C. Masson, "Acrylic Fiber Technology and Applications" Marcel Dekker, Inc 1995