Characterization of Highly Cross-linked Polymers

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Content: Formation and properties of polymer networks : experimental and theoretical studies / J.L. Stanford, R.F.T. Stepto, and R.H. Still --
Computer simulation of end-linked elastomers : sol-gel distributions at high extents of reaction / Yu-Kwan Leung and B.E. Eichinger --
Rheological changes during the copolymerization of vinyl and divinyl monomers / D.T. Landin and C.W. Macosko --
Elastomeric poly(dimethylsiloxane) networks with numerous short-chain segments / J.E. Mark and J.G. Curro --
Light scattering of randomly cross-linked polystyrene / Kanji Kajiwara and Walther Burchard --
Correlation networks in polymeric materials determined by small-angle neutron scattering / L.H. Sperling, A.M. Fernandez, and G.D. Wignall --
Carboxyl-terminated butadiene-acrylonitrile-modified epoxy resin and its graphite fiber-reinforced composite : morphology and dynamic mechanical properties / Su-Don Hong, Shirley Y. Chung, George Neilson, and Robert F. Fedors --
Mechanical behavior of some epoxies with epoxidized natural oils as reactive diluents / Shahid Qureshi, J.A. Manson, J.C. Michel, R.W. Hertzberg, and L.H. Sperling --
Volume recovery in aerospace epoxy resins : effects on time-dependent properties of carbon fiber-reinforced epoxy composites / Eric S.W. Kong --
Structure and fracture of highly cross-linked networks / J.D. Lemay, B.J. Swetlin, and F.N. Kelley --
Fractographic effect of glassy organic networks / D.T. Turner --
Peroxide cross-linked natural rubber and cis-polybutadiene : characterization by high-resolution solid-state carbon-13 NMR / Dwight J. Patterson and Jack L. Koenig --
Carbon-13 magic angle NMR spectroscopic studies of an epoxy resin network / A. Cholli, W.M. Ritchey, and Jack L. Koenig --
NMR kinetic analysis of polyethylene-peroxide cross-linking reactions / V.D. McGinniss and J.R. Nixon --
Degradation chemistry of primary cross-links in high-solids enamel finishes : solar-assisted hydrolysis / Alan D. English and Harry J. Spinelli --
IR spectroscopic studies of degradation in cross-linked networks : photoenhanced hydrolysis of acrylic-melamine coatings / D.R. Bauer and L.M. Briggs --
Electron spin resonance (ESR) of photodegradation in polymer networks : photoinitiation rate measurement by nitroxide termination / John L. Gerlock, David R. Bauer, and L.M. Briggs --
Highly cross-linked CR-39 polycarbonate and its degradation by high-energy radiation / J.L. Cercena, J. Groeger, A.A. Mehta, R. Prottas, J.F. Johnson, and S.J. Huang.

Author(s): S. S. Labana and R. A. Dickie (Eds.)
Series: ACS Symposium Series 243
Publisher: American Chemical Society
Year: 1984

Language: English
Pages: 321
City: Washington, D.C

Title Page......Page 1
Half Title Page......Page 3
Copyright......Page 4
ACS Symposium Series......Page 5
FOREWORD......Page 6
PdftkEmptyString......Page 0
PREFACE......Page 7
1 Formation and Properties of Polymer Networks Experimental and Theoretical Studies......Page 8
Pre-Gel Intramolecular Reaction......Page 9
Intramolecular Reaction and Gelation......Page 11
Network Properties......Page 14
Theoretical Correlations between Gel Point and Shear Modulus......Page 20
Literature Cited......Page 26
2 Computer Simulation of End-linked Elastomers Sol-Gel Distributions at High Extents of Reaction......Page 28
ALGORITHM......Page 29
EFFECT OF FINITENESS......Page 30
SOL FRACTIONS......Page 31
CONSTITUENTS OF THE SOL......Page 33
NETWORK IMPERFECTIONS......Page 35
SUMMARY......Page 37
Literature Cited......Page 39
3 Rheological Changes During the Copolymerization of Vinyl and Divinyl Monomers......Page 40
Experimental......Page 41
Theory......Page 42
Results and Discussion......Page 48
Literature Cited......Page 52
4 Elastomeric Poly(dimethylsiloxane) Networks with Numerous Short-Chain Segments......Page 54
Short-Chain Unimodal PDMS Networks......Page 55
Bimodal PDMS Networks......Page 56
Literature Cited......Page 60
5 Light Scattering of Randomly Cross-linked Polystyrene......Page 62
Theoretical Background......Page 63
Experimental......Page 66
Results and Discussion......Page 67
Literature Cited......Page 75
6 Correlation Networks in Polymeric Materials Determined by Small-Angle Neutron Scattering......Page 77
Theory......Page 78
Experimental......Page 80
Correlation Networks......Page 81
The Delta Deuterated Fraction Method......Page 83
Results......Page 84
Discussion......Page 91
Acknowledgments......Page 93
Literature Cited......Page 94
7 Carboxyl-Terminated Butadiene-Acrylonitrile-Modified Epoxy Resin and Its Graphite Fiber-Reinforced Composite Morphology and Dynamic Mechanical Properties......Page 96
Experimental......Page 99
Results and Discussion......Page 101
Literature Cited......Page 112
8 Mechanical Behavior of Some Epoxies with Epoxidized Natural Oils as Reactive Diluents......Page 114
Materials......Page 115
Polymerization......Page 117
Viscoelastic Response......Page 119
Ultimate Mechanical Behavior......Page 125
Literature Cited......Page 128
9 Volume Recovery in Aerospace Epoxy Resins Effects on Time-Dependent Properties of Carbon Fiber-Reinforced Epoxy Composites......Page 130
Experimental......Page 131
Results and Discussion......Page 135
Stress-Strain Analysis......Page 136
Dynamic Mechanical Analysis......Page 139
Differential Scanning Calorimetry......Page 143
Thermal Mechanical Analysis......Page 148
Moisture Sorption Kinetics......Page 155
Conclusions......Page 162
Literature Cited......Page 167
10 Structure and Fracture of Highly Cross-linked Networks......Page 170
Cross-link Density......Page 171
Fracture......Page 172
Experimental......Page 173
Results and Discussion......Page 181
Acknowledgments......Page 186
Literature Cited......Page 187
11 Fractographic Effect of Glassy Organic Networks......Page 189
Fractography of Brittle Materials......Page 190
Phenol-Formaldehydes......Page 191
Some Other Glassy Networks......Page 194
Methacrylate Networks......Page 195
Mechanism of Formation of Stries......Page 198
Localized Plastic Deformation and Strength......Page 202
Concluding Remarks......Page 203
Literature Cited......Page 206
12 Peroxide Cross-linked Natural Rubber and cis-Polybutadiene Characterization by High-Resolution Solid-State Carbon-13 NMR......Page 208
Carbon-13 NMR Pulse Sequence......Page 210
Fourier Transform Infrared Analysis of the Curing Process......Page 212
EXPERIMENTAL......Page 213
Instrument Analysis......Page 214
RESULTS AND DISCUSSION......Page 215
LITERATURE CITED......Page 234
13 Carbon-13 Magic Angle NMR Spectroscopic Studies of an Epoxy Resin Network......Page 236
RESULTS AND DISCUSSION......Page 237
Literature Cited......Page 241
14 NMR Kinetic Analysis of Polyethylene-Peroxide Cross-linking Reactions......Page 243
Experimental......Page 246
Results......Page 247
Literature Cited......Page 257
15 Degradation Chemistry of Primary Cross-links in High-Solids Enamel Finishes Solar-Assisted Hydrolysis......Page 259
Experimental Section......Page 260
Results......Page 261
Discussion......Page 269
Literature Cited......Page 271
16 IR Spectroscopic Studies of Degradation in Cross-linked Networks Photoenhanced Hydrolysis of Acrylic-Melamine Coatings......Page 272
Experimental......Page 274
Results and Discussion......Page 276
Conclusion......Page 282
Literature Cited......Page 285
17 Electron Spin Resonance (ESR) of Photodegradation in Polymer Networks Photoinitiation Rate Measurement by Nitroxide Termination......Page 286
ESR and Free Radical Quantification......Page 287
Experimental......Page 288
Kinetics of Nitroxide Decay......Page 291
Results......Page 294
Discussion......Page 296
Conclusion......Page 299
Literature Cited......Page 300
18 Highly Cross-linked CR-39 Polycarbonate and Its Degradation by High-Energy Radiation......Page 302
Results and Discussion......Page 304
Conclusions......Page 307
Literature Cited......Page 311
Author Index......Page 312
A......Page 313
C......Page 314
Ε......Page 315
G......Page 316
M......Page 317
Ρ......Page 318
R......Page 319
Τ......Page 320
Y......Page 321