失望未来
发表于 2025-3-28 17:25:50
Die intraamerikanischen Beziehungenuble biodegradable polymers designed for biomedical and controlled drug delivery applications rather than environmental degradation are not included in this chapter. However, necessary comparisons and correlations with the extensive work and literature on biodegradable plastics are included where es
Thymus
发表于 2025-3-28 21:15:49
https://doi.org/10.1007/978-3-531-93392-4ated and those that are not degraded are so stable that they cause no environmental hazard. The second problem with man-made wastes is that they are produced mainly in cities and towns where acceptable disposal becomes a logistical challenge.
马具
发表于 2025-3-29 00:11:15
Environmentally Biodegradable Water-Soluble Polymers,uble biodegradable polymers designed for biomedical and controlled drug delivery applications rather than environmental degradation are not included in this chapter. However, necessary comparisons and correlations with the extensive work and literature on biodegradable plastics are included where es
水獭
发表于 2025-3-29 05:39:30
Degradable Hydrocarbon Polymers in Waste and Litter Control,ated and those that are not degraded are so stable that they cause no environmental hazard. The second problem with man-made wastes is that they are produced mainly in cities and towns where acceptable disposal becomes a logistical challenge.
jeopardize
发表于 2025-3-29 09:08:15
Gerald Scott (Professor Emeritus in Chemistry and
connoisseur
发表于 2025-3-29 13:18:26
Why Degradable Polymers?,r tyre in modern transport would not have been possible without the use of natural, and later synthetic, rubbers as the energy absorbing components. ‘Plastics’, have largely replaced traditional materials used in packaging because of their better physical properties, notably strength and toughness,
谆谆教诲
发表于 2025-3-29 17:27:00
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Exposure
发表于 2025-3-29 23:35:14
Degradation and Stabilization of Carbon-Chain Polymers,ough this concept is normally associated with synthetic polymers made by addition polymerisation such as polyethylene, polypropylene, polystyrene and the synthetic rubbers, many naturally occurring polymers contain the same uninterrupted sequence of carbon atoms . The most studied and best unders
不透明性
发表于 2025-3-30 03:16:40
Techniques and Mechanisms of Polymer Degradation,d in order to evaluate the usefulness and service-life of polymers in different applications. As environmental concerns have increased, new demands are placed on the prediction of long-term properties of synthetic and natural polymers. When polymeric materials are exposed to a complex environment (.
思考
发表于 2025-3-30 04:24:06
Biodegradation of Aliphatic Polyesters,utic applications. For example, isotonic aqueous solutions of polyvinylpyrrolidone (PVP) were used as plasma expander during World War II and although this compound was far from ideal, it stayed in use for years before substitutes appeared . Since then, many polymers have been evaluated as candid