In situ Spectroscopy of Polymers Subjected to Supercritical CO 2 : Plasticization and Dye Impregnation

Abstract

In situ FT-IR spectroscopy has been used to study poly(methyl methacrylate) films subjected to high-pressure and supercritical CO₂. Spectral changes indicate increased molecular mobility of ester groups due to the plasticization effect of CO₂ on PMMA. This increase in PMMA segmental mobility has been used to impregnate Disperse Red 1 dye (DR1) into polymer film from a supercritical fluid solution. The enhanced diffusion process was observed in situ via FT-IR and UV/vis spectroscopy.

Keywords

FT-IR UV/vis Supercritical carbon dioxide PMMA Plasticization Dyeing Diffusion Hydrogen bonding

Get full access to this article

View all access options for this article.

References

McHugh

M. A.

and Krukonis

V. J

, Supercritical Fluid Extraction: Principles and Practice (Butterworth-Heinemann, Boston, Massachusetts, 1994).

DeSimone

J. M.

Maury

E. E.

Menceloglu

Y. Z.

McClain

J. B.

Romack

T. J.

and Combes

J. R

, Science 265, 356 (1994).

Watkins

J. J.

and McCarthy

T. J

, Chem. Mater. 7, 1991 (1995).

Kazarian

S. G.

Vincent

M. F.

Bright

F. V.

Liotta

C. L.

and Eckert

C. A

, J. Am. Chem. Soc. 118, 1729 (1996).

Kazarian

S. G.

Vincent

M. F.

and Eckert

C. A

, Rev. Sci. Instr. 67, 1586 (1996).

Berens

A. R.

Huvard

G. S.

Korsmeyer

R. W.

and Kunig

F. W

, J. Appl. Polym. Sci. 46, 231 (1992).

Chapman

B. R.

Gochanour

C. R.

and Paulaitis

M. E

, Macromolecules 29, 5635 (1996).

Vincent

M. F.

Kazarian

S. G.

and Eckert

C. A

, “Tunable Diffusion of D₂O in CO₂-Swollen Poly(methyl Methacrylate) Films”, AIChE J., submitted for publication (1996).

Saus

Knittel

and Schollmeyer

, Textile Res. J. 63, 135 (1993).

10.

Knittel

Saus

Hoger

and Schollmeyer

, Angew. Macromolek. Chem. 218, 69 (1994).

11.

Polymers for Second-Order Nonlinear Optics, ACS Symposium Series Vol. 601, Lindsay

G. A.

and Singer

K. D

, Eds. (American Chemical Society, Washington, D.C., 1995).

12.

Prasad

P. N.

and Williams

D. J

, Introduction to Nonlinear Optical Effects in Molecules and Polymers (John Wiley and Sons, New York, 1991).

13.

Barry

S. E.

and Soane

D. S

, Appl. Phys. Lett. 58, 1134 (1991).

14.

Barry

S. E.

and Soane

D. S

, Macromolecules 29, 3565 (1996).

15.

Nagai

, J. Appl. Polym. Sci. 7, 1697 (1963).

16.

Havriliak

and Roman

, Polymer 7, 387 (1966).

17.

Belopolskaya

T. V.

and Trapeznikova

O. N

, Vysokomol. Soedin. 13, 1119 (1971).

18.

O'Reilly

J. M.

and Mosher

R. A

, Macromolecules 14, 602 (1981).

19.

Wissinger

R. G.

and Paulaitis

M. E

, J. Polym. Sci. Polym. Phys. 25, 2497 (1987).

20.

Condo

P. D.

and Johnston

K. P

, J. Polym. Sci. B: Polym. Phys. 32, 523 (1994).

21.

Goel

S. K.

and Beckman

E. J

, Polymer 34, 1410 (1993).

22.

Poliakoff

Howdle

S. M.

and Kazarian

S. G

, Angew. Chem. Int. Ed. Engl. 34, 1275 (1995).

23.

Yagi

Tsugane

Inomata

and Saito

, J. Supercrit. Fluids 6, 139 (1993).

24.

Briscoe

B. J.

and Thomas

P. S

, Tribology Trans. 38, 382 (1995).

25.

Cooper

A. I.

Kazarian

S. G.

and Poliakoff

, Chem. Phys. Lett. 206, 175 (1993).

26.

Cooper

A. I.

Howdle

S. M.

Hughes

Jobling

Kazarian

S. G.

Poliakoff

Shepherd

L. A.

and Johnston

K. P

, Analyst 118, 1111 (1993).

27.

Howdle

S. M.

Ramsay

J. M.

and Cooper

A.I

, J. Polym. Sci. B: Polym. Phys. 32, 541 (1994).

28.

Hajatdoost

and Yarwood

, Appl. Spectrosc. 50, 558 (1996).

29.

Iogansen

A. V.

Kurkchi

G. A.

Furman

V. M.

Glazunov

V. P.

and Odinokov

S. E

, Zh. Prikl. Spectrosk. 33, 460 (1980).

30.

Bohm

Materny

Kiefer

Steins

Muller

M. M.

and Schottner

, Macromolecules 29, 2599 (1996).

31.

Labarthet

F. Lagugne

and Sourisseau

, J. Raman Spectrosc. 27, 491 (1996).

32.

West

B. L.

Kazarian

S. G.

Vincent

M. F.

Brantley

N. H.

and Eckert

C.A

, American Institute of Chemical Engineers, 1996 Annual Meeting, Chicago, Paper 102g.