Step 4: Converting to pulp Filament yarns are chopped and mixed with water to form a fibrous substance called wet pulp. This wet pulp can be sold directly or dried to create and sell as dry pulp.Industries Applications where aramids are used Thanks to their high strength, heat resistance...
What substance is made up of monomers joined together in long chains ? a. ketone b. ester c. protein d. acid What structural features must be present in a monomer that can form both an addition polymer and a condensation polymer?
Unlike most cancers, mesothelioma doesn’t usually form as a single tumor. This makes it harder for doctors to diagnose. For example, pleural mesothelioma spreads over the surface of the lungs and chest wall, while peritoneal mesothelioma covers the lining of the abdomen. Key Facts on Malignant...
3. An aromatic ring must contain only sp2-hybridized atoms that can form a delocalized system of pi molecular orbitals 4. The number of pi electrons in the system must equal 4n + 2, where n is an integer. Answer and Explanation:1 ...
One can thus see how a substance (monomer) with as small a molecular weight as 54 grows to become a giant molecular (polymer) of (54 × 4000 ≈)200000 molecular weight. It is essentially the 'giantness' of the size of the polymer molecule that makes its behavior different from that of...
Matter is a substance made up of various types of particles that occupies physical space and has inertia. According to the principles of modern physics, the various types of particles each have a specific mass and size. The most familiar examples of material particles are theelectron, the proton...
If you have ever used litmus paper and tested a substance that turned the paper from red to blue, you have just dipped the paper into an alkaline solution. But what makes a solution alkaline, other than its pH? That is, what atomic or molecular factors underlie the result of a pH test...
catenanes (although is it covalent or van der Waals forces that ultimately prevent separation of the components?). Yet it would also include the DNA double helix, protein conformations, molecular crystals, coordination complexes and liquid water. That makes it a rather unwieldy, excessively broad ...
A newly made eukaryotic cell begins a life cycle that includes the following phases: G1(first gap phase), S (synthetic phase), G2(second gap phase) and mitosis. In G1, the cell makes duplicates of every component of the cell with the exception of the chromosomes. In S, which takes ...
In this view, the absorption or deposition grade of a substance mainly depends on the skin status and the chemical-physical profile of the molecule (Zoabi et al., 2021). 2.1. Influence of the skin properties on drug delivery Among the several factors that can affect drug delivery across the...