Stabilized poly(arylene ether) compositions and methods of making them
Disclosed herein is a method to stabilize a poly(arylene ether) comprising combining a neat or diluted poly(arylene ether) with a vinyl or vinylidene-terminated polyolefin at a temperature of at least 80° C. to form heated reaction components; combining a Brφnsted acid or Lewis acid with the heated reaction components; and isolating a polyolefin-poly(arylene ether) copolymer composition.
1. A method to stabilize a poly(arylene ether) comprising:
combining a neat or diluted poly(arylene ether) with a vinyl or vinylidene-terminated polyolefin at a temperature of at least 80° C. to form heated reaction components, wherein the vinyl or vinylidene-terminated polyolefin is selected from the group consisting of vinyl or vinylidene-terminated polyethylene, vinyl or vinylidene-terminated polypropylene, vinyl or vinylidene-terminated ethylene-propylene copolymer, vinyl or vinylidene-terminated hexene-ethylene copolymer, vinyl or vinylidene-terminated octene-ethylene copolymer, and combinations thereof;
combining a Brφnsted acid or Lewis acid with the heated reaction components; and
isolating a polyolefin-poly(arylene ether) copolymer composition.
2. The method of claim 1 , wherein number average molecular weight of the poly(arylene ether) is within a range of from 1,000 g/mole to 40,000 g/mole.
3. The method of claim 1 , wherein the number average molecular weight of the vinyl or vinylidene-terminated polyolefin is within a range of from 5,000 g/mole to 160,000 g/mole.
4. The method of claim 1 , wherein the decrease in the Complex Viscosity at 230° C. of the polyolefin-poly(arylene ether) copolymer is no greater than 15% when pre-heated at 350° C. (from 0.1 to 10 rad/s).