By Judit E. Puskas
Designed for polymer and fabrics engineering scholars, the textual content introduces polymer chemistry via polymers present in nature. It explains biobased polymer structures and artificial platforms via exploring the chemistry of traditional polymers from vegetation and animals, in addition to self-assembled macromolecular buildings, together with proteins, lignin, protamers, and fibers. additionally coated are man made polymerization and rising advances in eco-friendly polymer chemistry, together with exact motives of eco-friendly syntheses.
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Extra info for Introduction to polymer chemistry: a biobased approach
In a process called DNA replication. Eukaryotic organisms (animals, plants, fungi, and protists) store most of their DNA inside the cell nucleus and some of their DNA in organelles, such as mitochondria or chloroplasts. In contrast, prokaryotes (bacteria and archaea) store their DNA only in the cytoplasm. 2. RNA RNA is a special macromolecule in biology because it is able to store and transmit information as well as catalyze some processes. One of these processes is protein synthesis where mRNA molecules direct the assembly of proteins on ribosomes.
Ionic (Coulombic) Interactions Ionic interactions occur between two charged species. 16): the N+ and Cl– ions are held together by attractive Coulombic forces. Repulsive Coulombic forces would occur between two positive or two negative charges. Ionic interactions are also very important in nature, as we will learn in the subsequent chapters. 16. NaCl, or salt, is held together by an ionic bond (Wikimedia Commons). 3. 1. ). Proteins, enzymes, DNA and similar natural polymers have a well-defined structure and a precise molecular weight.
96 Å of the –O–H covalent bond. Hydrogen bonds and other polarized bonds are accompanied by molecular electrostatic potentials. 10). Positive electrostatic potential corresponds to repulsion of the proton by the atomic nuclei in regions where low electron density exists and the nuclear charge is incompletely shielded (colored in shades of blue). 2. π-π Interactions These interactions are a type of non-covalent interaction that can occur between sp2-conjugated molecules in which p orbitals overlap one another.