As a proof of principle, we decided to synthesize a new family of biodegradable polymers, called polyanhydrides, for medical use.

Another graduate student showed that the polymers were safe.

Examples of biodegradable wastes include straw, timber, manure, rice husks, sewage, and food waste.

The polymers in mattress stuffing are used in breast implants.

Description Synthetic fibers are made from synthesized polymers or small molecules.

Examples include natural fibres, organic agricultural products, recyclable and biodegradable products or sustainably produced forest products.

Natural polymers, well ... I think that's what's most important, because these polymers have been tried and tested in our ecosystem for the last billion years, in everything from mushrooms to crustaceans.

In our world we use about 350 polymers to make all this.

This application is mainly used to modify the surface chemistry of polymers.

Yet one of my graduate students synthesized the polymers for his doctoral thesis.

These systems are mostly fabricated from silicon (Si), silicon nitride (Si3N4), or polymers.

(d) The fact that biofuels are biodegradable, and are ideal for inland waterways and other environmentally sensitive areas.

This is made bone is made from a mixture of inorganic minerals and polymers.

And also, I thought that there would be synthetic polymers, plastics, embedded in the rock.

When that moves into polymers, you can change the elasticity, the fluidity of the form.

Given that most of these items are not biodegradable, and are not recycled, plastics waste is building up with serious environmental consequences.

Working in a hospital, I saw that almost all polymers used in medicine were derived from household objects.

The main structural components of plant cuticles are the unique polymers cutin and or cutan, impregnated with wax.

In our first grant proposal, in 1981, the reviewers said that we would never be able to synthesize the polymers.

The alarming UNEP report on marine debris only heightens our concern over the ever growing accumulation of non biodegradable debris in the marine and coastal environments.

We returned the proposal for another review it came back with the comment that the polymers were fragile and would break.

Because of their broad range of properties, both synthetic and natural polymers play an essential and ubiquitous role in everyday life.

Such chromophores are often present in various organic compounds and sometimes present in polymers that are colored or glow in the dark.

Meanwhile, our gatherer ancestors ate carbohydrates (polymers of glucose), which was also transported to the liver, via the glycolytic pathway, and broken down for energy.

Then we would have an anaerobic digester, which could deal with all the biodegradable waste from the local area, turn that into heat for the greenhouse and electricity to feed back into the grid.

However, after two years of work, I discovered that I could modify certain types of polymers to release molecules of virtually any size over a 100 day period.

We then synthesized these polymers and discovered that by changing their composition, we could make them last in the body for a period ranging from days to years.

But, of course, for most of us, we know how to grow teeth, and therefore we can take adult stem teeth, put them on a biodegradable mold, re grow a tooth, and simply implant it.

With Henry Brem, now the chief of neurosurgery at Johns Hopkins Hospital, we thought we could use these polymers to deliver drugs locally in the treatment of brain cancer.

Paul John Flory (June 19, 1910 September 9, 1985) was an American chemist and Nobel laureate who was known for his work in the field of polymers, or macromolecules.

The revised proposal was sent again for evaluation, and now the reviewers reason for rejecting it was that new polymers would not be safe to test on animals or people.

Matt Froind, a dairy farmer in New Canaan, Connecticut, who woke up one day and realized the crap from his cows was worth more than their milk, if he could use it to make these biodegradable flower pots.

In the future they will look like that, because we need to move away from those type of polymers and use that for medical equipment and more important things, perhaps, in life.

The comparison of linear polymers proteins made up of chains of amino acids, or DNA made up of chains of nucleotides held out the promise of a simple tabular approach to evolution.

We sent the proposal back for another review, only to be told that the grant should still not be funded, because the polymers would react with whatever drug we wanted to deliver.

It's sustainable it's a sustainable material that is processed all in water and at room temperature and is biodegradable with a clock, so you can watch it dissolve instantaneously in a glass of water or have it stable for years.

The exact process is still not understood theoretically in detail but its known from experiments that low molar mass systems tend to fill the pores completely, whereas polymers of sufficient chain length just cover the walls.

In this process the particulate core material, which is solid, is dispersed into the supporting air stream and these suspended particles are coated with polymers in a volatile solvent leaving a very thin layer of polymer on them.

This process happens typically within a minute for temperatures about 50 K above the melting temperature or glass transition temperature, even for highly viscous polymers, such as, for instance, polytetrafluoroethylene, and this holds even for pores with an aspect ratio as large as 10,000.

Tacticity is particularly significant in vinyl polymers of the type H2C CH(R) where each repeating unit with a substituent R on one side of the polymer backbone is followed by the next repeating unit with the substituent on the same side as the previous one, the other side as the previous one or positioned randomly with respect to the previous one.