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1977

William MacKnight

Articles 1 - 7 of 7

Full-Text Articles in Engineering

A Small-Angle X-Ray Scattering Study Of Blends Of Isotactic And Atactic Polystyrene, William Macknight, Frank P. Warner, Richard S. Stein Dec 1976

A Small-Angle X-Ray Scattering Study Of Blends Of Isotactic And Atactic Polystyrene, William Macknight, Frank P. Warner, Richard S. Stein

William MacKnight

The small angle x-ray scattering from blends of isotactic and atactict polystyrene has been studied. Results have been interpreted and c􀀆ompared using the Tsvankin, Vonk and Hosemann techniques. The studies suggest that segregation of the atactic component occurs during crystallization within the growing spherulite of the isotactic component. However, since the interlamellar distance does not increase with atactic content, segre­gation is believed to occur with the formation of domains larger than iu­t􀀙rlamellar but smaller than spherulite size.

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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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Partial Miscibility In The System Poly(Para-Chlorostyrene-Co-Ortho-Chlorostyrene)/ Poly(2, 6-Dimethyl-1,4-Phenylene Oxide), William Macknight, P. Alexandrovich, F. E. Karasz Dec 1976

Partial Miscibility In The System Poly(Para-Chlorostyrene-Co-Ortho-Chlorostyrene)/ Poly(2, 6-Dimethyl-1,4-Phenylene Oxide), William Macknight, P. Alexandrovich, F. E. Karasz

William MacKnight

No abstract provided.

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Problems In Compatibility Studies, William Macknight, F. E. Karasz Dec 1976

Problems In Compatibility Studies, William Macknight, F. E. Karasz

William MacKnight

No abstract provided.

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Transitions And Relaxations In Cis Polypentenamer And Its Hydrogenated Derivatives, William Macknight, T. R. Earnest Jr. Dec 1976

Transitions And Relaxations In Cis Polypentenamer And Its Hydrogenated Derivatives, William Macknight, T. R. Earnest Jr.

William MacKnight

A study has been made of the dynamic mechanical relaxation behavior of a 97% cis polypentenamer and its hydrogenated derivatives. The starting polypentenamer is wholly amorphous and derivatives were synthe­sized having melting points from -11 to 131 °C and degrees of crystallinity from 2 to 80%. Three relaxations are dis­cernible in the temperature range from -160 °C to the melting point and these are labeled a, {3, and 1' in order of de­creasing temperature. The a relaxation occurs only in the crystalline derivatives. In the derivatives of low crystallini­ty, it originates from motions accompanying melting; in derivatives of high crystallinity, …

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Phosphonylation Of A Polypentenamer And Preparation Of Its Hydrogenated Derivatives, William Macknight, C. Azuma Dec 1976

Phosphonylation Of A Polypentenamer And Preparation Of Its Hydrogenated Derivatives, William Macknight, C. Azuma

William MacKnight

No abstract provided.

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Properties Of Polyethylene Modified With Phosphonate Side Groups. I. Thermal And Mechanical Properties.Pdf, William Macknight, R. A. Weiss, R. W. Lenz Dec 1976

Properties Of Polyethylene Modified With Phosphonate Side Groups. I. Thermal And Mechanical Properties.Pdf, William Macknight, R. A. Weiss, R. W. Lenz

William MacKnight

No abstract provided.

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