Abstract
An acetone-formaldehyde (AF) resin containing methylol (-CH2OH) groups was prepared and condensed with m-aminophenol (mAP) in the presence of alcoholic alkali catalyst at varying mole ratios of AF:mAP; 1:1, 1:1.5 and 1:2. The resultant AF-mAP resin was characte.,tized by elemental analysis, IR spectral studies, number average molecular weight (M̄n) estimated by non-aqueous conductometric titration and thermogravimetry. The curing reaction between AF-mAP resin and hexamethylenetetramine (HMTA) was monitored by differential scanning calorimetery (DSC) and kinetic parameters were evaluated. Glass-reinforced composites (i.e. laminates) based on the AF-mAP-HMTA system were also prepared and characterized by mechanical properties.
References
1.
Borodkina
N.I.
and
Frolov
S.S.
, Zh.Prikl. Khim , 36 (2 ) (1963 ) 408 -415 ; Chem. Abst. 59, 7361g
2.
Sarnitskaya
S.Z.
and
Bronovitskii
V.E.
, VINITI, USSR. Deposited publication , (1973 ) 5732 -5773 ; Chem. Abstr. 85,47477f .
3.
Hayano
H.
and
Fujita
K.
, Japan Kanzei Chuo Bunsekishoho , 18 (1978 ) 89 -100 ; Chem.Abstr. 90,169417k .
4.
Skoda
A.I.
,
Mravec
D.
and
Ilavski.
, J. Chem. Prum. , (Slovako Farma, N.P.Hlovec, Czech.) 39 (11) (1978) 575-580; Chem. Abst. 112,215878j .
5.VEB Fabenfabrik Wolfen., Belg. 657,577; Chem. Abstr. , 65 (1966 ) 2128 ).
6.
Okay
O.
and
Schindlbauer
H.
, Angew. Makromol. Chem. (Germany) , 127 (1984 ) 203 -209 ; Chem. Abstr. 102,114398r .
7.
Kuznetsova
E.P.
,
Starkova
I.M.
,
Vakulenko
V.A.
,
Kurochkina
R.N.
and
Lyubimova
E.A.
, USSR SU , 1 ,155 ,605 (1985 ); Chem. Abst. 103,106028a .
8.
Rasulov
A.A.
,
Fazilov
T.I.
,
Lem
R.A.
and
Salikhov
B.G.
, USSR SU , 1 , 217 ,872 (1986 ); Chem. Abst. 105,5725m .
9.
Patel
H.S.
and
Dixit
B.C.
, High Perform. Polym. , 9 (1997 ) 153 -160 .
10.
Chatterji
S.K.
and
Agrawal
V.B.
, J. Polym. Sci. , Part A-l (9 )(1971 ) 3225 .
11.
Dichamp
A.
and
Tortai
J.P.
Ernest Marechal, Bulletin of Chemical Society of France , 8 (1972 ) 3234 -3258 .
12.
Patel
H.S.
and
Dixit
B.C.
, Int. J. Polym. Mater. , 40 (1998 ) 29 -39 .
13.
Patel
H.S.
and
Dixit
B.C.
, Int. J. Polym. Mater. , 43 (1998 ) 309 -318 .
14.
Young
C. W.
,
DuVall
R.B.
and
Wright
N.
, Analyt. Chem. , 23 (1951 ) 709 .
15.
Jackson
W.M.
and
Conley
R.T.J.
Appl. Polym. Sci. , 8 (1964 ) 2873 .