Government Reports Annual Index
Government Reports Annual Index

Author:

Publisher:

Published: 1978

Total Pages: 1304

ISBN-13:

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Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Evaluation of Cellulose Ethers for Conservation
Evaluation of Cellulose Ethers for Conservation

Author: Robert L. Feller

Publisher: Getty Publications

Published: 1991-03-21

Total Pages: 173

ISBN-13: 0892360992

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This report is the result of a three-year research program. It describes the chemical character of cellulose ethers as a general class of polymers and establishes an approximate ranking of the relative stability of each generic chemical subclass. Ranking the thermal stability of the polymers with respect to color change and loss in degree of polymerization led to the conclusion that as generic chemical classes, methylcellulose and carboxymethylcellulose appear to be the most stable of the cellulose ethers. Water-soluble ethylhydroxyethylcellulose apparently also possesses good stability. Of questionable long-term stability are hydroxyethylcellulose and hydroxy- propylcellulose. Ethylcellulose and organic-soluble ethylhydroxyethylcellulose proved to be of poor stability, potentially undergoing marked changes in twenty years or less under normal museum conditions. An important additional conclusion reached here, as well as in an earlier investigation, is that considerable variations in stability can occur within a generic chemical class from differences in the basic raw material, a natural product from plants, which is not a uniform, manufactured, chemical substance. Further variations can exist due to different manufacturing processes or commercial sources. Hence, commercial products must be evaluated individually to determine the most stable of a given generic type. Nonetheless, the authors believe the conclusions expressed here to be valid with regard to the relative stability of the generic chemical classes of cellulose ethers.

Handbook of Composites from Renewable Materials, Nanocomposites
Handbook of Composites from Renewable Materials, Nanocomposites

Author: Vijay Kumar Thakur

Publisher: John Wiley & Sons

Published: 2017-04-06

Total Pages: 902

ISBN-13: 1119224462

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This unique multidisciplinary 8-volume set focuses on the emerging issues concerning synthesis, characterization, design, manufacturing and various other aspects of composite materials from renewable materials and provides a shared platform for both researcher and industry. The Handbook of Composites from Renewable Materials comprises a set of 8 individual volumes that brings an interdisciplinary perspective to accomplish a more detailed understanding of the interplay between the synthesis, structure, characterization, processing, applications and performance of these advanced materials. The Handbook comprises 169 chapters from world renowned experts covering a multitude of natural polymers/ reinforcement/ fillers and biodegradable materials. Volume 7 is solely focused on the "Nanocomposites: Science and Fundamentals" of renewable materials. Some of the important topics include but not limited to: Preparation, characterization, and applications of nanomaterials from renewable resources; hydrogels and its nanocomposites from renewable resources: preparation of chitin-based nanocomposite materials through gelation with ionic liquid; starch-based bionanocomposites; biorenewable nanofiber and nanocrystal; investigation of wear characteristics of dental composite reinforced with rice husk-derived nanosilica filler particles; performance of regenerated cellulose/vermiculite nanocomposites fabricated via ionic liquid; preparation, structure, properties, and interactions of the PVA/cellulose composites; green composites with cellulose nanoreinforcements; biomass composites from bamboo-based micro/nanofibers; synthesis and medicinal properties of polycarbonates and resins from renewable sources; nanostructured polymer composites with modified carbon nanotubes; organic–inorganic nanocomposites derived from polysaccharides; natural polymer-based nanocomposites; cellulose whisker-based green polymer composites; poly (lactic acid) nanocomposites reinforced with different additives; nanocrystalline cellulose; halloysite-based bionanocomposites; nanostructurated composites based on biodegradable polymers and silver nanoparticles; starch-based biomaterials and nanocomposites; green nanocomposites based on PLA and natural organic fillers; and chitin and chitosan-based nanocomposites.

Color Atlas of Chemical Peels
Color Atlas of Chemical Peels

Author: Antonella Tosti

Publisher: Springer Science & Business Media

Published: 2006-01-16

Total Pages: 214

ISBN-13: 3540302239

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First atlas to cover latest advances in chemical peel techniques Fully illustrated to support step-by-step procedures Ideal reference tool for dermatologists focusing on cosmetology

Excipient Development for Pharmaceutical, Biotechnology, and Drug Delivery Systems
Excipient Development for Pharmaceutical, Biotechnology, and Drug Delivery Systems

Author: Ashok Katdare

Publisher: CRC Press

Published: 2006-07-28

Total Pages: 474

ISBN-13: 1420004131

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To facilitate the development of novel drug delivery systems and biotechnology-oriented drugs, the need for new, yet to be developed, and approved excipients continues to increase. Excipient Development for Pharmaceutical, Biotechnology, and Drug Delivery Systems serves as a comprehensive source to improve understanding of excipients and forge potential new avenues for regulatory approval. This book presents detailed, up-to-date information on various aspects of excipient development, testing, and technological considerations for their use. It addresses specific details such as historical perspective, preclinical testing, safety, and toxicology evaluation, as well as regulatory, quality, and utility aspects. The text also describes best practices for use of various functional excipients and extensive literature references for all topics.