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| Process of making self-aligned amorphous-silicon thin film transistors |
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Novel poly(aryl ether) polymers
| Details |
Inventors: Matzner, Markus; Kwiatkowski, George T.; Robeson, Lloyd M.;
Assignee: Amoco Corporation (Chicago, IL)
Primary Examiner: Kight; John
Assistant Examiner: Moore; M. L.
Attorney, Agent or Firm: Jerome; Frederick S., Magidson; William H., Medhurst; Ralph C.
Described herein are novel poly(aryl ether) polymers that contain naphthalene, terephenylene and/or anthracenylene units within their chains. Representative polymers are tough materials having excellent high temperature, oxidative and chemical resistance, and easy melt fabricability. |
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DETAILED DESCRIPTION What is claimed is: 1.
Poly(aryl ethers) having repeating units of the formula --E--O--E'--O-- wherein E is one or more: divalent aromatic radical selected from the group consisting of ##STR104## and E' is one or more divalent radical selected from the group consisting of: E, ##STR105## where A is the group ##STR106## p is an integer and is independently 1 or 2; m is independently 0 or 1 with the proviso that when m is 1 the linkage of the group A to the body of the E radical is via the carbonyl function of the A group, and n is an integer of 1 to 5; T and T.
sub.
1 can be the same or different and are independently hydrogen, C.
sub.
1 to C.
sub.
4 alkyl, C.
sub.
1 to C.
sub.
4 alkoxy, phenyl, .
alpha.
-styryl, .
alpha.
-methylstyryl or halogen; Q is independently a chemical bond, O, S, S--S, CH.
sub.
2 or CO, with the proviso that when E is a naphthylene containing group and both m's are zero and n is one, Q cannot be CO.
2.
Poly(aryl ethers) having repeating units of the formula ##STR107## wherein T and T.
sub.
1 are independently hydrogen, C.
sub.
1 to C.
sub.
4 alkyl, C.
sub.
1 to C.
sub.
4 alkoxy, phenyl, .
alpha.
-styryl, .
alpha.
-methylstyryl or halogen and Q' is independently O or CO with the proviso that at least one Q' is an oxygen bridge.
Description:
FIELD OF THE INVENTION This invention is directed to novel poly(aryl ethers) that contain naphthalene, terephenylene and/or anthracenylene units within their chains.
Representative polymers are tough materials having excellent high temperature, oxidative and chemical resistance, and easy melt-fabricability.
Members of this class of resins are crystalline and display a high degree of order in the molten state or in solution.
BACKGROUND OF THE INVENTION Poly(aryl ethers) have been known for about two decades; they are tough linear polymers that possess a number of attractive features such as excellent high temperature resistance, good electrical properties, and very good hydrolytic stability.
Two poly(aryl ethers) are commercially available
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