This invention relates to nanocomposites comprising organo-clay and at least one stabilization functionalized thermoplastic polyolefin. Preferably the stabilization functionalized thermoplastic polyolefin is represented by the formula:
T-(R
1
G)
n
wherein
T represents the thermoplastic polyolefin
Each R
1
is a bridging group, preferably independently selected from the group consisting of C
1
to C
20
aliphatic; C
1
to C
20
aromatic; substituted C
1
to C
20
aliphatic; substituted C
1
to C
20
aromatic; C
1
to C
20
aliphatic ester; C
1
to C
20
aliphatic ether; C
1
to C
20
aliphatic amide; C
1
to C
20
aliphatic imide;
n is the number of stabilization functional/bridging groups bound to T and may be from 1-300; and
G is selected from one or more of phenols, ketones, hindered amines, substituted phenols, substituted ketones, substituted hindered amines, or combinations thereof.
US7371793B2
申请人:——
公开号:US7371793B2
公开(公告)日:2008-05-13
US7825182B2
申请人:——
公开号:US7825182B2
公开(公告)日:2010-11-02
Choice of Manganese(III) Complexes for the Synthesis of 4,4′-Biphenyldiols and 4,4′-Diphenoquiones
6-Disubstituted phenols are oxidized with tris(2,4-pentanedionato)manganese(III), [Mn(acac)3], in glacial acetic acid to give the corresponding 4,4′-biphenyldiols in high yields, whereas similar reactions using manganese(III) acetate, [Mn(OAc)3], insted of [Mn(acac)3] quantitatively yield the corresponding 4,4′-diphenoquinones. Cross-coupling reactions of 2,6-di-t-butylphenol and other substituted phenols afford