How can cellulose and starch be modified to enhance the processability?

Please explain the difference between starch and cellulose in terms of the molecular architecture. Thanks!

03 April 2018 199 3 View

Does anyone know how to improve scratch resistance of polystyrene (PS)?

Parts both for modified and homopolymer of PS. How can I measure the scratch resistance property of PS (Non Destructive). Would appreciate any suggestion.

02 March 2018 8,367 2 View

How about Soy based poly foam?

01 February 2018 8,514 0 View

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01 February 2018 7,976 2 View

What do you think about a product that is made of "100% nylon coated Polyurethane"?

01 February 2018 9,982 0 View

How safe is the polyurethane in the new interior car seats from toyota and others?

I want to know if it is safe to buy. It has been on my mind as we are purchasing a car with softech or softtex.

01 February 2018 231 3 View

Have you heard of "Ryanair Pledges to Go Plastic-Free by 2023"?

01 February 2018 2,269 1 View

What temperature do you recommend using all parchment paper?

Maximum all parchment paper that is free of non-stick coatings. The parchment paper I have seen has a silicone coating. Do you know what a typical parchment paper coating is made of?. What type of...

01 February 2018 5,079 0 View

MALDI-TOF MS of PDMS based ligand - What matrix should I select in order to obtain a good MS?

As I know, correct selection of the matrix is crucial for the success and correct interpretation. Could you suggest any matrix for long-chain PDMS ligand (masses range 10-20 kDa)? What conditions...

31 December 2017 5,882 2 View

Is there any relation between phase mixing/miscibility and phase separation/immiscibility in the polymer blends?

What exactly is the main result for this? Kindly explain briefly... I have checked so many publications associated with it, however, it is difficult for me to find the exact and clear definition....

31 December 2017 266 0 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

Which database would give me this list of chemical components?

Dear colleagues: I would like to know if anyone knows of a database that gives me the parameters pH, K, K, Mg, P, C, N, Zn, Cu, Ni and Cd of common foods. I find a lot of information of proteins,...

26 February 2021 5,525 3 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

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22 February 2021 9,932 11 View

Can anyone help or comment on solubilising chlorobutanol in aqueous injections in minimum time possible?

Please suggest solubilisation of chlorobutanol in injections. Tried pH and high temperature. But the issue is of assay drop. If anyone can suggest any solution. Its a commonly used excipient for...

21 February 2021 7,397 1 View

What reaction will occur when adding hexamine into ammonium nitrate in an acidic medium?

Hello, I am investigating properties of water in oil emulsion explosives. And adding hexamine (hexamethylenetetramine) into one of the phases that are used to make the emulsion should increase the...

21 February 2021 8,680 1 View

What properties of water shall be analyzed and evaluated to test the effectiveness of activated carbon?

I would like to ask what other properties of water (pH and such) shall be analyzed and evaluated to test the effectiveness of activated carbon from filtering the contaminants present in the water?

20 February 2021 9,422 8 View

Phenol-pH graphic?

We want to use phenol pH graphic to measure the pH of mediums before and after inhibitor application to cells. We have phenol absorbence values at 460, 560 and 720 nm wavelength. When we measure...

20 February 2021 7,700 3 View

How to measure the pH of Peat Soil?

Peat possess organic content above 75% and is highly acidic in nature (i.e. pH < 4). Before commencing stabilization, it is mandatory to know about the pH level of peat. Therefore, your...

18 February 2021 9,424 7 View