After quenching a chain-growth polymerization via Suzuki-Miyaura coupling, normally two kinds of polymer ends are obtained. One is (polymer)-H, the other is (polymer)-Br. Why does this happen ?? Is the quenching manner different ??
The stress and strain of inorganic materials such as Si films can be measured by Raman spectroscopy. Can we analyze the stress of organic materials such as polymer films by Raman spcetroscopy ?
06 July 2017 5,789 4 View
In many cases of emulsion droplets prepared by homogenization and ultrasonication, the size distribution can be fitted by a log-normal fitting. I want to know why that is.
08 September 2014 5,872 9 View
In the acid condition, is thiol easily oxidized to disulfide or any others? I prepared 2-propanol solution containing dodecanethiol for SAM. I checked the thiol group before and after addition of...
09 October 2013 2,811 4 View
I want know how the PDMS precursor liquids cross-link. Is there any initiator inside?
06 July 2013 8,416 8 View
I prepared a PDMS film (sylgard 184), but it has absorption around 250 nm and 200 nm. Can I remove these absorption? I need transparency from 190 nm to NIR.
03 April 2013 7,357 4 View
How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...
10 August 2024 942 3 View
Fatal error in MPI_Allreduce: Other MPI error, error stack: MPI_Allreduce(1628)......: MPI_Allreduce(sbuf=000002459254A180, rbuf=000002459F86A140, count=4851, MPI_DOUBLE_COMPLEX, MPI_SUM,...
09 August 2024 7,615 1 View
We intend to study the interaction between peptides and polymer (like PP, PE and PS) through MD simulations using Martini force fields ( Martini 2 for PP and Martini 3 for PE, PS). We have...
08 August 2024 4,842 0 View
What is the prepared reference material that can be used in the ICPE-9820 Shimadzu Japan instrument, which employs inductively coupled plasma optical emission spectrometry (ICP-OES) to measure...
06 August 2024 1,896 1 View
is there any other way to heat a polymer evenly other than oil bath if so what are those and how to use it
06 August 2024 947 1 View
Citi BLOC Standard Basket Definitions: A standardized unit representing a fixed basket of construction materials, labor, and equipment costs priced in various cities. Purpose: To create a common...
04 August 2024 8,997 1 View
In some data sources it has been grouped in Q1 and some shows it is Q2.
29 July 2024 4,227 2 View
Hello everyone, I am try to understand the differences interaction between insoluble and soluble polymers in water with metal ions and how theit charge density (of metal ions) affect the interaction.
29 July 2024 6,350 3 View
If the pairs are similar, will it reduce the adhesion due to electric charges?
29 July 2024 3,185 2 View
I have different polymer solutions and I hypothesize that water molecules are retained based on the water-polymer interactions, so the amount of free water is less to intercat with drug tablet....
28 July 2024 9,545 6 View