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Solution properties of ultrahigh molecular weight polymers—20. Polymer chain dimensions of poly(methyl methacrylate)

✍ Scribed by Silvia Ioan; Maria Bercea; Catalina Ioan; Bogdan C Simionescu

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
428 KB
Volume
31
Category
Article
ISSN
0014-3057

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✦ Synopsis

The paper is concerned with the evaluation of ultrahigh molecular weight poly(methyl methacrylate) dimensions over a wide concentration range in different solvents, by use of a model proposed by Qian and Rudin. The model allows the estimation of the unperturbed dimensions, and the obtained values are close to previous experimental data obtained in theta conditions and with those listed in the literature.

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Solution properties of ultra-high molecu
Solution properties of ultra-high molecular weight polymers—13. Viscosity-molecular weight relationships and unperturbed dimensions of poly(butyl methacrylate) in various solvents
✍ Cristofor I. Simionescu; Silvia Ioan; Bogdan C. Simionescu 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 332 KB

The behaviour of ultra-high molecular weight poly(butyl methacrylate) (/~w = 9.59 × 106-24.50 × 106) in dilute solution in methyl ethyl ketone, benzene, dioxane, and cyclohexanone, at 25c'C. has been investigated by viscometry. Mark Houwink relations have been established, and the unperturbed dimens