chemistry

Poly(2,6-diphenylphenylene oxide)

Poly(2,6-diphenylphenylene oxide) is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Poly(2,6-diphenylphenylene oxide) rather than just read about it. In short: Poly(2,6-diphenyl-p-phenylene oxide) (PPPO) is a porous polymer resin based on oxidative polymerisation of 2,6-diphenylphenol. It is mostly known by its trademark Tenax.

Key takeaways

Poly(2,6-diphenylphenylene oxide) belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Poly(2,6-diphenylphenylene oxide) to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Poly(2,6-diphenylphenylene oxide) from memory before moving on to harder problems.

Reference excerpt

Poly(2,6-diphenyl-p-phenylene oxide) (PPPO) is a porous polymer resin based on oxidative polymerisation of 2,6-diphenylphenol. It is mostly known by its trademark Tenax.

Properties Poly(2,6-diphenylphenylene oxide) is a low bleeding material with a low level of impurities, and has a high thermal stability (up to 350 °C). Before use poly(2,6-diphenylphenylene oxide) should be thermally conditioned with a high purity gas at elevated temperatures to remove any residual components. During conditioning or thermal desorption the presence of oxygen should be avoided. Poly(2,6-diphenylphenylene oxide) reacts with oxidising agents such as chlorine, ozone, nitrogen oxides and sulfur oxides forming acetophenone, benzaldehyde and phenol. Therefore, control of blanks is essential and storage time of samples on poly(2,6-diphenylphenylene oxide) is less than a month. Pre-filters based on sodium thiosulphate or Teflon may be appropriate to use. The breakthrough volumes are low for very volatile substances. This problem is partly solved by graphitised poly(2,6-diphenylphenylene oxide). Although the polymer has a low affinity for water, high humidity in air may lower the breakthrough volumes of substances.

Use Poly(2,6-diphenylphenylene oxide) is used for trapping of volatiles and semi-volatiles from air such as environmental air and human breath, and for personal exposure monitoring. It is also used for determining the emission of chemical substances from plants, soil and commercial products. Volatile substances in liquid or solid matrices can be made available by the purge and trap technique. The polymer is of particularly used for concentration of high boiling compounds such as alcohols, polyethylene glycols, diols, phenols, monoamines and diamines, ethanolamines, amides, aldehydes, ketones and chlorinated aromatics. Poly(2,6-diphenylphenylene oxide) is used as food simulant for testing the release of chemical substances from food contact materials into food.

Trademarks Tenax is a registered trademark of Buchem B.V.

Tenax GC (replaced by Tenax TA) Tenax TA (mesh 20-35, 35-60, 60-80, 80-100, 100-200) Tenax GR: 23% graphite (mesh 20-35, 35-60, 60-80, 80-100)

References

External links Buchem B.V. SIS Henry J. McDermott, Shirley A. Ness (2004) Air monitoring for toxic exposures, 2nd Ed, John Wiley and Sons, 172-173, ISBN 0-471-45435-4, ISBN 978-0-471-45435-9 Șerban Moldoveanu, Víctor David (2002) Sample preparation in chromatography, Journal of Chromatography Library 65, Elsevier, 277-278, ISBN 0-444-50394-3, ISBN 978-0-444-50394-7

Illustrations

Worked examples

Example 1 — a first encounter with Poly(2,6-diphenylphenylene oxide)

Start with the simplest possible case. Write down what Poly(2,6-diphenylphenylene oxide) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Poly(2,6-diphenylphenylene oxide) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Poly(2,6-diphenylphenylene oxide) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Poly(2,6-diphenylphenylene oxide)

In research: Poly(2,6-diphenylphenylene oxide) appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Poly(2,6-diphenylphenylene oxide) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Poly(2,6-diphenylphenylene oxide) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Organic polymers, so understanding it makes those chapters shorter.
In everyday life: Look for Poly(2,6-diphenylphenylene oxide) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Poly(2,6-diphenylphenylene oxide)” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Poly(2,6-diphenylphenylene oxide) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Poly(2,6-diphenylphenylene oxide) means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Poly(2,6-diphenylphenylene oxide) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Poly(2,6-diphenylphenylene oxide) in simple terms?

Poly(2,6-diphenyl-p-phenylene oxide) (PPPO) is a porous polymer resin based on oxidative polymerisation of 2,6-diphenylphenol. It is mostly known by its trademark Tenax.

Why does Poly(2,6-diphenylphenylene oxide) matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Poly(2,6-diphenylphenylene oxide)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Poly(2,6-diphenylphenylene oxide).