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Chemical Engineering

William MacKnight

Polystyrene

Articles 1 - 7 of 7

Full-Text Articles in Engineering

Phase Behavior In Copolymer Blends Of Polystyrene And Poly(0-Chlorostyrene-Co-P-Chlorostyrene), William Macknight, Gerrit Ten Brinke Dec 1983

Phase Behavior In Copolymer Blends Of Polystyrene And Poly(0-Chlorostyrene-Co-P-Chlorostyrene), William Macknight, Gerrit Ten Brinke

William MacKnight

No abstract provided.

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Compatibility Of Some Fluorosubstituted Styrene Polymers And Copolymers In Blends With Poly(2,6-Dimethyl-1,4-Phenylene Oxide) And With Polystyrene, William Macknight, Radivoje Vukovic, F. E. Karasz Dec 1982

Compatibility Of Some Fluorosubstituted Styrene Polymers And Copolymers In Blends With Poly(2,6-Dimethyl-1,4-Phenylene Oxide) And With Polystyrene, William Macknight, Radivoje Vukovic, F. E. Karasz

William MacKnight

No abstract provided.

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Evidence For Critical Double Points In Blends Of Polystyrene And Poly(O-Chlorostyrene), William Macknight, Sherrie L. Zacharius, Gerrit Ten Brinke, F. E. Karasz Dec 1982

Evidence For Critical Double Points In Blends Of Polystyrene And Poly(O-Chlorostyrene), William Macknight, Sherrie L. Zacharius, Gerrit Ten Brinke, F. E. Karasz

William MacKnight

Theoretical and experimental evidence is put forward to prove that both UCST and LCST behavior can be found in blends of polystyrene and poly(o-chlorostyrene). Vapor sorption results combined with known results of heat of mixing experiments lead to the conclusion of the rather uncommon UCST behavior. 
Existing data of T, measurements show that the PS/PoClS system is extremely sensitive to a small change in molar mass. A decrease in molar mass of PS of less than 4000 transforms an only partially miscible system 
into a system that is miscible throughout the entire experimental temperature range from 150 to 400 °C. …

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Enthalpy Of Mixing Of Poly(2, 6-Dimethyl Phenylene Oxide) And Polystyrene, William Macknight, N. E. Weeks, F. E. Karasz Dec 1976

Enthalpy Of Mixing Of Poly(2, 6-Dimethyl Phenylene Oxide) And Polystyrene, William Macknight, N. E. Weeks, F. E. Karasz

William MacKnight

No abstract provided.

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Structure And Properties Of The System: Poly(2, 6-Dimethyl-Phenylene Oxide) Isotactic Polystyrene. Wide-Angle X-Ray Studies, William Macknight, R. Hammel, F. E. Karasz Dec 1974

Structure And Properties Of The System: Poly(2, 6-Dimethyl-Phenylene Oxide) Isotactic Polystyrene. Wide-Angle X-Ray Studies, William Macknight, R. Hammel, F. E. Karasz

William MacKnight

No abstract provided.

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Physical Properties Of The System: Poly(2,6-Dimethylphenylene Oxide)-Polystyrene, William Macknight, J. Stoelting, F. E. Karasz Dec 1970

Physical Properties Of The System: Poly(2,6-Dimethylphenylene Oxide)-Polystyrene, William Macknight, J. Stoelting, F. E. Karasz

William MacKnight

No abstract provided.

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Dynamic Mechanical Properties Of Poly(2, 6-Dimethyl-1,4-Phenylene Ether)-Polystyrene Blends, William Macknight, J. Stoelting, F. E. Karasz Dec 1969

Dynamic Mechanical Properties Of Poly(2, 6-Dimethyl-1,4-Phenylene Ether)-Polystyrene Blends, William Macknight, J. Stoelting, F. E. Karasz

William MacKnight

Blends of poly(2,6-dimethyl-l,4-phenylene ether) (FPO) and a tactic polystyrene (PS) have been prepared by mechan­ically mixing powders of the two polymers and subjecti􀀇ng the mixtures to three different thermal treatments. Three different 
compositions were studied by the dynamic m􀀋echaniac􀀌l and DSC techniques. The weight fractions of FPO m the mixtures 
were 0.25, 0.50 and 0.75. The dynamic mechanical measure­
ments indicate that partial mixing took place but that two 
distinct phases, one rich in PS and the other in FPO, exis􀀕 􀀖n all the mixtures studied. Each phase exhibits a charactenstlc 
relaxation peak associated with the glass transition of that  …

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