Скачать или смотреть Biodegradable polymer | Wikipedia audio article

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Biodegr...


00:00:54 1 History
00:02:21 2 Structure and properties
00:02:43 2.1 Structure
00:03:51 2.2 Properties
00:06:00 3 Synthesis
00:10:02 4 Mechanism of breakdown
00:12:27 5 Applications and uses
00:12:51 5.1 Medical
00:16:52 5.2 Packaging and materials
00:18:14 6 Notable examples
00:18:23 6.1 2012 Presidential Green Chemistry Challenge
00:19:58 7 Future concerns and potential problems



Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
increases imagination and understanding
improves your listening skills
improves your own spoken accent
learn while on the move
reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services...
Other Wikipedia audio articles at:
https://www.youtube.com/results?searc...
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.9035981089568943
Voice name: en-AU-Wavenet-B


"I cannot teach anybody anything, I can only make them think."
Socrates


SUMMARY
=======
Biodegradable polymers are a special class of polymer that breaks down after its intended purpose by bacterial decomposition process to result in natural byproducts such as gases (CO2, N2), water, biomass, and inorganic salts. These polymers are found both naturally and synthetically made, and largely consist of ester, amide, and ether functional groups. Their properties and breakdown mechanism are determined by their exact structure. These polymers are often synthesized by condensation reactions, ring opening polymerization, and metal catalysts. There are vast examples and applications of biodegradable polymers.
Bio-based packaging materials have been introduced as a green alternative in the past decades, among which, edible films have gained more attention due to their environmentally-friendly characteristics, vast variety and availability, non-toxicity, and low cost.