Poly(arylene ether) articles and compositions

1. A profile extruded article comprising a composition comprising the product of melt-kneading:

45 to 70 weight percent of a poly(arylene ether) having a post-compounding weight average molecular weight of 50,000 to 60,000 atomic mass units;

9 to 20 weight percent of a polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer having a polystyrene content of 20 to 50 percent and a weight average molecular weight of at least 250,000 atomic mass units;

5 to 45 weight percent of homopolystyrene; and

1 to 9 weight percent of polysalicylate;

wherein all weight percents are based on the total weight of the composition;

wherein the weight ratio of poly(arylene ether) to polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer is less than or equal to 6.5;

wherein the profile extruded article is a multiwall article; and

wherein the profile extruded article is a solar collector.

2. The profile extruded article of claim 1 , wherein the poly(arylene ether) has a pre-compounding weight average molecular weight of 40,000 to 50,000 atomic mass units.

3. The profile extruded article of claim 1 , wherein the composition exhibits

a tensile stress at yield of at least 60 megapascals, measured at 23° C. according to ISO 527,

a tensile modulus of at least 2200 megapascals, measured at 23° C. according to ISO 527,

a flexural strength of at least 80 megapascals, measured at 23° C. according to ISO 178,

a melt volume-flow rate of at least 20 cubic centimeters per minute, measured at 300° C. and 10 kilogram load according to ISO 1133,

a heat deflection temperature of at least 140° C., measured at 0.45 megapascals according to ISO 75/Bf,

an Izod notched impact strength of at least 18 kilojoules/meter 2 , measured at 23° C. according to ISO 180/1A, and

an Izod notched impact strength of at least 7 kilojoules/meter 2 , measured at 23° C. according to ISO 180/1A after aging for 2000 hours in air at 140° C.

4. The profile extruded article of claim 1 , wherein the composition comprises less than 2 weight percent any polymer other than the poly(arylene ether), the polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer, the homopolystyrene, and the polysalicylate.

5. The profile extruded article of claim 1 , wherein the composition excludes fillers.

6. The profile extruded article of claim 1 , wherein the composition comprises the product of melt-kneading:

55 to 65 weight percent of a poly(arylene ether) having a post-compounding weight average molecular weight of 53,000 to 57,000 atomic mass units;

11 to 16 weight percent of a polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer having a polystyrene content of 25 to 40 percent and a weight average molecular weight of 250,000 to 450,000 atomic mass units;

15 to 25 weight percent of homopolystyrene; and

3 to 6 weight percent of polysalicylate;

wherein the weight ratio of poly(arylene ether) to polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer is 3 to 5.