Interpenetrating Polymer Networks and Related MaterialsTo the surprise of practically no one, research and engineering on multi polymer materials has steadily increased through the 1960s and 1970s. More and more people are remarking that we are running out of new monomers to polymerize, and that the improved polymers of the future will depend heavily on synergistic combinations of existing materials. In the era of the mid-1960s, three distinct multipolymer combinations were recognized: polymer blends, grafts, and blocks. Although inter penetrating polymer networks, lPNs, were prepared very early in polymer history, and already named by Millar in 1960, they played a relatively low-key role in polymer research developments until the late 1960s and 1970s. I would prefer to consider the IPNs as a subdivision of the graft copolymers. Yet the unique topology of the IPNs imparts properties not easily obtainable without the presence of crosslinking. One of the objectives of this book is to point out the wealth of work done on IPNs or closely related materials. Since many papers and patents actually concerned with IPNs are not so designated, this literature is significantly larger than first imagined. It may also be that many authors will meet each other for the first time on these pages and realize that they are working on a common topology. The number of applications suggested in the patent literature is large and growing. Included are impact-resistant plastics, ion exchange resins, noise-damping materials, a type of thermoplastic elastomer, and many more. |
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Page 46
... ( styrene - alt - maleic acid anhydride ) poly ( vinyl acetate - co - butadiene ) poly ( styrene - b - butadiene ) poly ( vinyl chloride - b- ( styrene - co - butadiene ) ] poly butadiene- [ [ g - styrene Lg - vinyl acetate poly ...
... ( styrene - alt - maleic acid anhydride ) poly ( vinyl acetate - co - butadiene ) poly ( styrene - b - butadiene ) poly ( vinyl chloride - b- ( styrene - co - butadiene ) ] poly butadiene- [ [ g - styrene Lg - vinyl acetate poly ...
Page 83
... styrene mixture was prepared by dissolving proportionally 0.4 g of benzoyl peroxide and 1 ml of commercial divinylbenzene solution ( 55 % ) in 99 ml of freshly distilled styrene monomer . This was polymerized to form a polystyrene ...
... styrene mixture was prepared by dissolving proportionally 0.4 g of benzoyl peroxide and 1 ml of commercial divinylbenzene solution ( 55 % ) in 99 ml of freshly distilled styrene monomer . This was polymerized to form a polystyrene ...
Page 233
... styrene resins , where methyl methacrylate has replaced the acrylonitrile in ABS . When dispersed in poly ( vinyl chloride ) , a refractive index match can be obtained , which combines high clarity with impact resistance . al ( 131 ) ...
... styrene resins , where methyl methacrylate has replaced the acrylonitrile in ABS . When dispersed in poly ( vinyl chloride ) , a refractive index match can be obtained , which combines high clarity with impact resistance . al ( 131 ) ...
Contents
An Introduction to Polymer Networks and IPNs | 1 |
Suggested Reading Bibliography of Selected Polymer Books | 8 |
A Nomenclature for Multipolymer Systems | 31 |
Copyright | |
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Common terms and phrases
ABCP acid acrylate Appl benzoyl peroxide block copolymers butyl castor oil chains Chem compatibility component composition continuous phase crosslink density crosslink level crosslinked polymer D. A. Thomas diisocyanate elastomer electron microscopy emulsion epoxy equation equivalent weight free energy gelation glass transition temperature glycol graft copolymers homo-IPNs homopolymer Interpenetrating Networks Interpenetrating Polymer Networks J. A. Manson K. C. Frisch Klempner L. H. Sperling L. M. Sergeeva latex latex IPNs linear Lipatov Macromolecules materials mechanical behavior methyl methacrylate mixing mixture modulus molding monomer morphology osmium tetroxide P₁ peroxide phase domain phase inversion phase separation physical crosslinks plastic PMMA poly poly(methyl methacrylate poly(vinyl polybutadiene polyester Polymer Blends polymerization polystyrene polyurethane prepared prepolymer properties reaction resin rubber S. C. Kim semi-II semi-IPNs semi-SINs sequential IPNs shown in Figure SINS solution structure styrene swelling synthesis Table tensile thermoplastic IPNs unsaturated urethane v₁ York