Special Interest Catogories: biotechnology; materials science; medicine; ecology and chemistry. The book summarizes the literature data and research results on biodegradable polyesters of microbiological origin -- polymers of hydroxy alkanoic acids (polyhydroxyalkanoates, PHAs). These polymers are thermoplastic, biodegradable, and biocompatible. They are promising candidates for applications in agriculture, communal services, pharmacology, medicine, and other spheres. The book sums up the most recent data on the known types of polyhydroxyalkanoates, their producers, substrates, and methods of biosynthesis. The structure and physicochemical properties of these polymers, the methods used to process them to make specialised products and spheres of their application are described in the book.

“This eloquent, elegant book thoughtfully plumbs the . . . consequences of our dependence on plastics” (The Boston Globe, A Best Nonfiction Book of 2011). From pacemakers to disposable bags, plastic built the modern world. But a century into our love affair, we’re starting to realize it’s not such a healthy relationship. As journalist Susan Freinkel points out in this eye-opening book, we’re at a crisis point. Plastics draw on dwindling fossil fuels, leach harmful chemicals, litter landscapes, and destroy marine life. We’re drowning in the stuff, and we need to start making some hard choices. Freinkel tells her story through eight familiar plastic objects: a comb, a chair, a Frisbee, an IV bag, a disposable lighter, a grocery bag, a soda bottle, and a credit card. With a blend of lively anecdotes and analysis, she sifts through scientific studies and economic data, reporting from China and across the United States to assess the real impact of plastic on our lives. Her conclusion is severe, but not without hope. Plastic points the way toward a new creative partnership with the material we love, hate, and can’t seem to live without. “When you write about something so ubiquitous as plastic, you must be prepared to write in several modes, and Freinkel rises to this task. . . . She manages to render the most dull chemical reaction into vigorous, breathless sentences.” —SF Gate “Freinkel’s smart, well-written analysis of this love-hate relationship is likely to make plastic lovers take pause, plastic haters reluctantly realize its value, and all of us understand the importance of individual action, political will, and technological innovation in weaning us off our addiction to synthetics.” —Publishers Weekly “A compulsively interesting story. Buy it (with cash).” —Bill McKibben, author of The End of Nature “What a great read—rigorous, smart, inspiring, and as seductive as plastic itself.” —Karim Rashid, designer

An estimated 8 million metric tons (MMT) of plastic waste enters the world's ocean each year - the equivalent of dumping a garbage truck of plastic waste into the ocean every minute. Plastic waste is now found in almost every marine habitat, from the ocean surface to deep sea sediments to the ocean's vast mid-water region, as well as the Great Lakes. This report responds to a request in the bipartisan Save Our Seas 2.0 Act for a scientific synthesis of the role of the United States both in contributing to and responding to global ocean plastic waste. The United States is a major producer of plastics and in 2016, generated more plastic waste by weight and per capita than any other nation. Although the U.S. solid waste management system is advanced, it is not sufficient to deter leakage into the environment. Reckoning with the U.S. Role in Global Ocean Plastic Waste calls for a national strategy by the end of 2022 to reduce the nation's contribution to global ocean plastic waste at every step - from production to its entry into the environment - including by substantially reducing U.S. solid waste generation. This report also recommends a nationally-coordinated and expanded monitoring system to track plastic pollution in order to understand the scales and sources of U.S. plastic waste, set reduction and management priorities, and measure progress.

What does cotton candy, which dissolves at the touch, have in common with Kevlar, used for bullet-proof vests? How can our understanding of such materials help us to tackle essential problems of the 21st century? Materials play a key role in our search for solutions to many pressing issues. They underpin many industries, are critical for the development of consumer goods, are essential components of medical diagnostic techniques, offer hope for the treatment of currently incurable diseases, and provide answers to environmental problems. This handbook is a guide to the materials we rely on for the future. Materials for the 21st Century serves as a useful resource for undergraduate and high school students preparing for a career in physical sciences, life sciences,or engineering, by helping them to identify new areas of interest. It is also an excellent reference for readers interested in learning more about the diverse range of materials that underlie key aspects of our economy and everyday lives.

Brydson's Plastics Materials, Eighth Edition, provides a comprehensive overview of the commercially available plastics materials that bridge the gap between theory and practice. The book enables scientists to understand the commercial implications of their work and provides engineers with essential theory. Since the previous edition, many developments have taken place in plastics materials, such as the growth in the commercial use of sustainable bioplastics, so this book brings the user fully up-to-date with the latest materials, references, units, and figures that have all been thoroughly updated. The book remains the authoritiative resource for engineers, suppliers, researchers, materials scientists, and academics in the field of polymers, including current best practice, processing, and material selection information and health and safety guidance, along with discussions of sustainability and the commercial importance of various plastics and additives, including nanofillers and graphene as property modifiers. With a 50 year history as the principal reference in the field of plastics material, and fully updated by an expert team of polymer scientists and engineers, this book is essential reading for researchers and practitioners in this field. - Presents a one-stop-shop for easily accessible information on plastics materials, now updated to include the latest biopolymers, high temperature engineering plastics, thermoplastic elastomers, and more - Includes thoroughly revised and reorganised material as contributed by an expert team who make the book relevant to all plastics engineers, materials scientists, and students of polymers - Includes the latest guidance on health, safety, and sustainability, including materials safety data sheets, local regulations, and a discussion of recycling issues