By Geoffrey R. Mitchell (auth.), Steven E. Keinath, Robert L. Miller, James K. Rieke (eds.)
In 1975, a symposium was once held in Midland, Michigan, co-sponsored via the Dow Chemical corporation and the then Midland Macromolecular Institute in honor of Raymond F. Boyer at the get together of his sixty fifth birthday and retirement from Dow. the subject of that first Boyer symposium handled a space of curiosity to Boyer, particularly, polymer transitions and relaxations. One decade later, after ten years of extra fruitful medical pastime at MMI, Ray Boyer used to be back venerated with a symposium, this time celebrating his seventy fifth birthday and tenth anniversary on the Michigan Molecular Institute. the subject of the second one Boyer symposium in 1985 was once just a little extra concentrated, this time targeting the topic of order (or constitution) within the amorphous kingdom of polymers and the attendant polymer transitions which are saw. This quantity includes the entire manuscripts of the members to the seventeenth MMI overseas Symposium, held in Midland, Michigan on August 18-21, 1985. 11 one-hour plenary lectures and ten 20-minute contributed papers have been offered throughout the Symposium. An open discussion board panel dialogue was once additionally scheduled; the edited transcript of that consultation is integrated on the finish of this quantity. one among our projects in organizing this Symposium used to be to aim to collect jointly a few audio system who will be capable of outline what, if any, actual constitution could be found in anwrplwus polymers and what the character of this order may perhaps be.
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Extra resources for Order in the Amorphous “State” of Polymers
J. Heijboer, Plastics and Rubber Research Institute, TNO, Delft, The Netherlands for providing most of the samples described herein and to Mr. P. Battjes for obtaining the scattering patterns. REFERENCES 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. R. Mitchell, contribution in this volume. F. L. Miller, Polymer, 17,925 (1976). F. L. Miller, Polymer, 17, 1112-1113 (1976). F. L. Miller, Rubber Chem. , 50, 798-818 (1977). F. L. Miller, Macromolecules, 10, 1167-1169 (1977).
035 nmlCH and less intense. From this one might infer that the pendant v 40 groups are less extended and the packing less "regular" in this series. For comparison, Fig. 8 contains also the scattering pattern of poly(cyclohexyl-4-phenyl methacrylate). 7 nm larger than the phenyl or cyclohexyl polymer alone) and has a markedly greater intensity than the others in Fig. 8. (3) Alkyloxy(or thio)ethylene methacrylate polymers, R = -C2H4-0-C nH2n+l (1 ::;; n::;; 2) and the thio analogs: scattering patterns for these four polymers are shown in Figure 9 and the peak positions are listed in Table I.
Successive curves have been shifted vertically one division for clarity. Intensity scale (per division) 400 counts/s except for curve 20 (200 counts/s). From ref. 25. 43 Table I). There is a strong effect on both the VOW and the LVOW peaks from both the substitution of this bulky group and the position of substitution. 45 nm in the para-substituted polymer. Noticeable also is a narrowing of both peaks in the para-substituted polymer indicative of a narrowing of the distribution of interatomic distances (more regular structure).