Order in the Amorphous “State” of Polymers

1. Front Matter

   Pages i-xiv

   PDF

2. Structure and Order

   1. The Local Structure of Noncrystalline Polymers: An X-ray Approach

      • Geoffrey R. Mitchell

      Pages 1-31

   2. Interrelationships Between Molecular and Physical Structure in Amorphous Polymers

      • Robert L. Miller

      Pages 33-51

   3. Studies on the Nature of Order in Amorphous Polymers

      • J. H. Wendorff

      Pages 53-70

   4. Structure and Transitions in Atactic Polystyrene

      • W. B. Yelon, B. Hammouda, A. Yelon, G. Leclerc

      Pages 71-81

   5. Ultraquenching, Double T _g , Order, and Motion in Amorphous Polymers

      • P. H. Geil

      Pages 83-118

   6. Interim Report on the Thermoreversible Gelation of Polymers

      • Anne Hiltner

      Pages 119-133

3. Contributions of Boyer and Colleagues

   1. Evidence from T _ll and Related Phenomena for Local Structure in the Amorphous State of Polymers

      • Raymond F. Boyer

      Pages 135-185

   2. Techniques for Studying Liquid State Transitions in Polystyrene

      • Steven E. Keinath

      Pages 187-219

   3. Differential Scanning Calorimetry (DSC) Observation of the T _ll Transition in Polystyrene

      • John B. Enns, Raymond F. Boyer

      Pages 221-249

   4. Hot Stage Microscopy of Polystyrene and Polystyrene Derivatives

      • Lisa R. Denny, Raymond F. Boyer

      Pages 251-261

   5. Dielectric Investigations of Poly(Propylene oxide) in the Liquid Region Above T _g

      • K. Varadarajan, Raymond F. Boyer

      Pages 263-271

   6. Pellet Boundary Reformation in Reheated Polystyrene Moldings

      • Donald R. Smith

      Pages 273-280

4. Polymer Transition Studies

   1. Evidence for Transition-like Phenomena in Oligomers and Polymers Above Their Melt Transition

      • J. K. Kruger, M. Pietralla

      Pages 281-304

   2. Thermally Stimulated Current Studies of Transitions in Amorphous Polymers

      • A. Bernes, R. F. Boyer, D. Chatain, C. Lacabanne, J. P. Ibar

      Pages 305-326

   3. Structure and Transitions Below and Above T _g in Polymers Derived from Itaconic Acid Derivatives

      • J. M. G. Cowie

      Pages 327-346

   4. Molecular Origins of Deformation Behavior and Physical Aging in Polycarbonate Copolymers

      • R. A. Bubeck, P. B. Smith, S. E. Bales

      Pages 347-358

   5. An Analysis of Secondary Relaxations in Bisphenol-A Polysulfone

      • A. Letton, J. R. Fried, W. J. Welsh

      Pages 359-370

   6. The T _ß , T _g , and T _ll “Transitions”: Are These the Manifestation of a Unique Relaxation Process?

      • J. P. Ibar

      Pages 371-393

   7. Rheological Studies of Amorphous Polystyrene Above T _g

      • Bryce Maxwell

      Pages 395-414

In 1975, a symposium was held in Midland, Michigan, co-sponsored by the Dow Chemical Company and the then Midland Macromolecular Institute in honor of Raymond F. Boyer on the occasion of his 65th birthday and retirement from Dow. The topic of that first Boyer symposium dealt with an area of interest to Boyer, namely, polymer transitions and relaxations. One decade later, after ten years of additional fruitful scientific endeavor at MMI, Ray Boyer was again honored with a symposium, this time celebrating his 75th birthday and 10th anniversary at the Michigan Molecular Institute. The topic of the second Boyer symposium in 1985 was somewhat more focused, this time concentrating on the subject of order (or structure) in the amorphous state of polymers and the attendant polymer transitions that are observed. This volume contains the full manuscripts of the contributors to the 17th MMI International Symposium, held in Midland, Michigan on August 18-21, 1985. Eleven one-hour plenary lectures and ten 20-minute contributed papers were presented during the Symposium. An open forum panel discussion was also scheduled; the edited transcript of that session is included at the end of this volume. One of our tasks in organizing this Symposium was to attempt to gather together a number of speakers who would be able to define what, if any, physical structure might be present in anwrplwus polymers and what the nature of this order might be.

• Copolymer
• Polycarbonat
• Polysulfon
• aging
• polymer

• Michigan Molecular Institute, Midland, USA

  Steven E. Keinath, Robert L. Miller

• Dow Chemical Company, Midland, USA

  James K. Rieke

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