Poly(alkylene dicarboxylates) and syntheses thereof
AssigneeBaylor University
InventorsA. G. Pinkus, Rajan Hariharan
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Abstract
Poly(alkylene dicarboxylate) polymers and copolymers having tetraalkyl- or trialkylammonium ion end groups and methods of synthesis, thereof. The methylene-containing copolymers, in general, adhere to glass and metals, including aluminum, iron, and copper. Poly(methylene-co-ethylene terephthalate) is a clear film useful in the protection of metals or glass from corrosion or scratching. Glass may be bound to glass or to metal using the polymers of the present invention or metal to metal seals may be made.
Claims33
A poly (alkylene1 dicarboxylate1-co-alkylene2 dicarboxylate2) having a tetraalkyl- or trialkylammonium end group
- wherein alkylene1 and alkylene2 are independently selected from the group consisting of methylene, ethylene, 2-E-butene, m-xylene and p-xylene;
- and
- wherein dicarboxylate1 and dicarboxylate2 are independently selected from the group consisting of oxalate, terephthalate, isophthalate, malonate, dimethylmalonate, fumarate and sebacate.
A composition comprising a poly(methylene terephthalate-co-ethylene terephthalate).
A composition comprising a poly(methylene oxalate-co-ethylene oxalate) polymer.
A composition comprising a poly(m-xylene terephthalate) having end groups X where X is a tetraalkyl- or a trialkylammonium ion.
A composition comprising a poly(methylene terephthalate-co-2-butenyl terephthalate) polymer.
A composition comprising a poly(methylene terephthalate-co-p-xylene terephthalate) polymer.
A composition comprising a bis(benzyltrimethylammonium) terephthalate polymer.
A composition comprising a bis(tetrabutylammonium) sebacate polymer.
A method for preparing a poly(alkylene1-co-alkylene2 dicarboxylate) copolymer, comprising:
- reacting bis (R.sup.1 R.sup.2 R.sup.3 R.sup.4 ammonium) dicarboxylate with a mixture of alkylene1 bromide and alkylene2 bromide in a mutual solvent to form a poly (alkylene1-co-alkylene2 dicarboxylate) copolymer
- wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are alkyl or arylalkyl and are not all methyl;
- wherein the alkylene1 and alkylene2 are independently selected from the group consisting of methylene, ethylene, 2-E-butene, m-xylene and p-xylene;
- and
- wherein the dicarboxylate is selected from the group consisting of oxalate, terephthalate, isophthalate, malonate, dimethylmalonate, fumarate and sebacate.
A method for preparing a poly(alkylene1-co-alkylene2 dicarboxylate), comprising:
- forming a bis(trialkylammonium) dicarboxylate salt;
- and
- reacting the bis(trialkylammonium) dicarboxylate salt with a mixture of alkylene1 halide and alkylene2 halide to form poly(alkylene1-co-alkylene2 dicarboxylate);
- wherein the alkylene1 and alkylene2 are independently selected from the group consisting of methylene, ethylene, 2-E-butene, m-xylene and p-xylene;
- and
- wherein the dicarboxylate is selected from the group consisting of oxalate, terephthalate, isophthalate, malonate, dimethylmalonate, fumarate and sebacate.
Dependencies are inferred from the claim text.