Abstract
Molecular transport of aromatic hydrocarbons through conventionally crosslinked SBR samples was conducted in the temperature interval of 25-65°C. The effect of crosslink density on the transport behaviour was thoroughly examined. The samples with high crosslink density exhibited the minimum solvent uptake. The mechanical properties of unswollen, swollen and deswollen SBR membranes were measured according to standard test methods. The effects of temperature and penetrant size on the transport process have also been studied. Values of the diffusivity and activation energy for diffusion were estimated from the diffusion data. Finally a comparison between theoretical and experimental diffusion results was carried out.
References
1.
Crank
J.
and
Park
G.S.
, Diffusion in Polymers
Academic Press , New York (1968 )
2.
Hopfenberg
H.B.
, Permeability of Plastic Films and Coatings to Gases , Vapors and Liquids, Plenum , New York (1974 )
3.
Errede
L.A.
, Macromolecules , 19 (1986 ) 654
4.
Cassidy
P.E.
,
Aminabhavi
T.M.
and
Thompson
C.M.
, Rubber Chem. Technol. Rubber Rev. , 56 (1983 ) 594
5.
Rao
R.V.
and
Yaseen
M.
, Pigment Resin Technol. , 7 (1978 ) 4
6.
Ruggeri
R.T.
and
Beck
T.R.
, Org. Coat. Plast. Chem. , 43 (1980 ) 583
7.
Koszinowski
J.
, J. Appl. Polym. Sci. , 32 (1986 ) 4765
8.
Berns
A.R.
and
Hopfenberg
H.B.
, J. Membr. Sci. , 10 (1982 ) 283
9.
Hwang
S.T.
,
Choi
C.K.
and
Kammermeyer
K.
, Sep. Sci. , 9 (1974 ) 461
10.
Robinson
J.R.
, Sustained and Controlled Release of Drug Delivery Systems , Dekker , New York (1978 ).
11.
Harogoppad
S.B.
and
Aminabhavi
T.M.
, Macromolecules
24 (1991 ) 2598
12.
Iwai
Y.
,
Miyamoto
S.
,
Ikeda
H.
,
Arai
S.
,
Kobuchi
S.
and
Sano
Y.
, Poly. Eng. Sci
33 (1993 ) 22
13.
Odani
H.
,
Uchikuro
M.
,
Taira
K.
and
Kurata
M.
, J. Macromol. Sci. Phys , B17 (1980 ) 337
14.
Poh
B.T.
,
Adachi
K.
and
Kotaka
T.
, Macromolecules , 20 (1987 ) 2574
15.
Rennar
N.
and
Oppermann
W.
, Colloid and Polym. Sci. , 270 (1992 ) 527
16.
Krejsa
M.R.
and
Koenig
J.L.
, Rubber Chem. Technol. , 66 (1993 ) 376
17.
Cooper
W.
, J. Polym. Sci. , 28 (1958 ) 195
18.
Morrell
S.H.
, Rubber Technology and Manufacture ,
Blow
C. M.
, Ed.; Newness , Butterworths, London (1975 ) p. 197
19.
Flory
P.J.
and
Rehner
J.
Jr.
, J. Chem. Phys. , 11 (1943 ) 521
20.
Langly
N.R.
, Macromolecules , 1 (1968 ) 348
21.
Lee
S.
,
Pawlowski
H.
and
Coran
A. Y.
, Rubber Chem. Technol. , 67 (1994 ) 854
22.
Schneider
N.S.
,
Illinger
J.L.
and
Cleaves
M.A.
, Poly. Eng. Sci , 26 (1986 ) 1547
23.
Harogoppad
S.B
and
Aminabhavi
T.M.
, J. Appl. Poly. Sci , 42 (1991 ) 2329
24.
Unnikrishnan
G.
and
Thomas
S.
, Polymer
37 (13 ) (1996 ) 2687
25.
Barrer
R.M
and
Skirrow
G.
, J. Poly. Sci. , 3 (1948 ) 549
26.
Anilkumar
S.
,
Thomas
S.
and
Kumaran
M.G.
, Polymer
38 (18 ) (1997 ) 4629
27.
Desai
S.
,
Thakore
I. M.
, and
Devi
S.
, Polymer International
47 (1998 ) 172
28.
George
S.C.
,
Ninan
K.N.
and
Thomas
S.
, Polymer , 37 (1996 ) 5839
29.
Davidson
G.W.R.
and
Peppas
N.A.
, J. Controlled Release , 3 (1986 ) 243
30.
Korsmeyer
R.W.
,
Meerwall
E.W.
and
Peppas
N.A.
, J. Polym. Sci. Polym. Phys. Edn. , 24 (1986 ) 409
31.
Crank
J.S.
, The Mathematics of Diffusion , 2nd edn.. Clarendon Press , Oxford (1975 ).
32.
Bristow
G.M.
and
Watson
W.F.
, Trans. Faraday Soc. , 54 (1958 ) 1731
33.
Aithal
U.S.
and
Aminabhavi
T.M.
, J. Chem. Educ. , 67 (1990 ) 82
34.
Mark
H.F.
,
Bikales
N.M.
,
Overberge
C.G.
and
Menges
G.
, Encyclopaedia of Polymer Science and Engineering , Vol. 4 , John Wiley and Sons (1986 ) p. 356
35.
Pasternak
R.
and
Kuhn
W.
, Helv. Chim.. Acta , 31 (1940 ) 340
36.
Flory
F.J.
,
Rabjohn
N.
and
Shaffer
M.C.
, J. Poly. Sci
4 (1949 ) 435