| US 7,381,850 B2 | ||
| Multifunctional unsymmetrically substituted monomers and polyarylene compositions therefrom | ||
| James P. Godschalx, Midland, Mich. (US); Robert E. Hefner, Jr., Lake Jackson, Tex. (US); Q. Jason Niu, Excelsior, Minn. (US); and H. Craig Silvis, Midland, Mich. (US) | ||
| Assigned to Dow Global Technologies Inc., Midland, Mich. (US) | ||
| Appl. No. 10/549,382 PCT Filed Apr. 01, 2004, PCT No. PCT/US2004/009973 § 371(c)(1), (2), (4) Date Jul. 17, 2006, PCT Pub. No. WO2004/089862, PCT Pub. Date Oct. 21, 2004. |
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| Prior Publication US 2006/0267000 A1, Nov. 30, 2006 | ||
| Int. Cl. C07C 49/537 (2006.01); C08F 36/00 (2006.01); H01L 29/08 (2006.01) | ||
| U.S. Cl. 568—330 [526/283; 526/285; 257/40] | 11 Claims |
1. A monomer corresponding to the formula:
 wherein L is —O—, —S—, —N═N—, —(CO)—, —(SO2)—, or —O(CO)—;
Z is independently in each occurrence hydrogen, halogen, an unsubstituted or inertly substituted aromatic group, an unsubstituted
or inertly substituted alkyl group, or two adjacent Z groups together with the carbons to which they are attached form a fused
aromatic ring, and in one occurrence, Z is
 R1 is independently each occurrence selected from the group consisting of hydrogen, halo, C1-4 alkyl, C6-60 aryl, and C7-60 inertly substituted aryl groups; and
R2 is independently each occurrence selected from the group consisting of hydrogen, C1-4 alkyl, C6-60 aryl, and C7-60 inertly substituted aryl groups.
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