Author: Mary Alice Schaefer
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
Book Description
Synthesis and Characterization of Polystyrene-graft-poly (methylphenylphosphazene)
Author: Mary Alice Schaefer
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
Book Description
Research in Progress
Author:
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 252
Book Description
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 252
Book Description
Synthesis and Characterization of Poly(2,2,2-trifluoroethoxyphosphazene)polystyrene Graft Copolymers
Author: Pamela Bires Hernandez
Publisher:
ISBN:
Category : Graft copolymers
Languages : en
Pages : 342
Book Description
Publisher:
ISBN:
Category : Graft copolymers
Languages : en
Pages : 342
Book Description
Synthesis and Characterization of Poly(oxyethylene) Graft Copolymers on Polystyrene
Author: F. Candau
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
Technical Reports Awareness Circular : TRAC.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 568
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 568
Book Description
Drexel Polymer Notes
Author:
Publisher:
ISBN:
Category : Polymers
Languages : en
Pages : 766
Book Description
Publisher:
ISBN:
Category : Polymers
Languages : en
Pages : 766
Book Description
Cities and Their Vital Systems
Author: Advisory Committee on Technology and Society
Publisher: National Academies Press
ISBN: 9780309037860
Category : Social Science
Languages : en
Pages : 1298
Book Description
Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.
Publisher: National Academies Press
ISBN: 9780309037860
Category : Social Science
Languages : en
Pages : 1298
Book Description
Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.
Synthesis and Characterization of Graft Copolymers Poly(isoprene-g-styrene) of High Molecular Weight by a Combination of Anionic Polymerization and Emulsion Polymerization
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Book Description
In this study, high molecular weight "comb-shaped" graft copolymers, poly(isoprene-g-styrene), with polyisoprene as the backbone and polystyrene as side chains, were synthesized via free radical emulsion polymerization by copolymerization of isoprene with a polystyrene macromonomer synthesized using anionic polymerization. A small amount of toluene was used in order to successfully disperse the macromonomer. Both a redox and thermal initiation system were used in the emulsion polymerization, and the latex particle size and distribution were investigated by dynamic light scattering. The structural characteristics of the macromonomer and comb graft copolymers were investigated through use of size exclusion chromatography, spectroscopy, microscopy, thermal analysis, and rheology. While the macromonomer was successfully copolymerized to obtain the desired multigraft copolymers, small amounts of unreacted macromonomer remained in the products, reflecting its reduced reactivity due to steric effects. Nevertheless, the multigraft copolymers obtained were very high in molecular weight (5-12 × 105 g/mol) and up to 10 branches per chain, on average, could be incorporated. A material incorporating 29 wt% polystyrene exhibits a disordered microphase separated morphology and elastomeric properties. As a result, these materials show promise as new, highly tunable, and potentially low cost thermoplastic elastomers.
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Book Description
In this study, high molecular weight "comb-shaped" graft copolymers, poly(isoprene-g-styrene), with polyisoprene as the backbone and polystyrene as side chains, were synthesized via free radical emulsion polymerization by copolymerization of isoprene with a polystyrene macromonomer synthesized using anionic polymerization. A small amount of toluene was used in order to successfully disperse the macromonomer. Both a redox and thermal initiation system were used in the emulsion polymerization, and the latex particle size and distribution were investigated by dynamic light scattering. The structural characteristics of the macromonomer and comb graft copolymers were investigated through use of size exclusion chromatography, spectroscopy, microscopy, thermal analysis, and rheology. While the macromonomer was successfully copolymerized to obtain the desired multigraft copolymers, small amounts of unreacted macromonomer remained in the products, reflecting its reduced reactivity due to steric effects. Nevertheless, the multigraft copolymers obtained were very high in molecular weight (5-12 × 105 g/mol) and up to 10 branches per chain, on average, could be incorporated. A material incorporating 29 wt% polystyrene exhibits a disordered microphase separated morphology and elastomeric properties. As a result, these materials show promise as new, highly tunable, and potentially low cost thermoplastic elastomers.
Masters Theses in the Pure and Applied Sciences
Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1461573947
Category : Science
Languages : en
Pages : 430
Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Oata Analysis and Synthesis (CINOAS) * at Purdue. University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 33 (thesis year 1988) a total of 13,273 theses titles from 23 Canadian and 1 85 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 33 reports theses submitted in 1988, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Publisher: Springer Science & Business Media
ISBN: 1461573947
Category : Science
Languages : en
Pages : 430
Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Oata Analysis and Synthesis (CINOAS) * at Purdue. University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 33 (thesis year 1988) a total of 13,273 theses titles from 23 Canadian and 1 85 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 33 reports theses submitted in 1988, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Polyphosphazenes for Medical Applications
Author: Ian Teasdale
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110654180
Category : Technology & Engineering
Languages : en
Pages : 162
Book Description
This book describes preparation techniques for well-defined, customizable poly(organo)phosphazene materials and their applications in nanomedicine, i.e. as macromolecular carriers for drug delivery, immunology, gene therapy, or tissue regeneration. This 2nd edition of Polyphosphazenes for Medical Applications has been updated and extended for researchers in the field as well as those considering using polyphosphazenes for a specific application.
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110654180
Category : Technology & Engineering
Languages : en
Pages : 162
Book Description
This book describes preparation techniques for well-defined, customizable poly(organo)phosphazene materials and their applications in nanomedicine, i.e. as macromolecular carriers for drug delivery, immunology, gene therapy, or tissue regeneration. This 2nd edition of Polyphosphazenes for Medical Applications has been updated and extended for researchers in the field as well as those considering using polyphosphazenes for a specific application.