(57) by polymerizing the reaction product obtained and reacted with liquid ammonia was condensed SUMMARY maleic acid, fumaric acid or maleic anhydride, to produce a polymer having repeating succinyl units.バグナーパウルデベルトフランクグロトトルステンイエントゲンビンフリート
Deduce the monomer units from which each of the following polymers is made, and tell whether each is a chain-growth or a step-growth polymer:Polymer:Polymers are made up of very large moelcules. These molecules are marked with s...
The polymers are characterized by the fact that no ring structures are present along the main chain between tertiary amino-groups of different units. The results indicate the monomeric units of this new family of poly(amido-amines) behave independently towards both protonation and complex formation....
Polymers are a broad class of materials which are made from repeating units of smaller molecule called monomers. Polymers can be natural in origin such as the lignin of tree branches. Other polymers are termed synthetic, because they are made by humans from naturally-occurring materials. Example ...
The invention relates to a process for preparing polymers having repeating succinyl units, especially polysuccinimide and polyaspartic acid, with increased M.sub.W values at non-increased, moderate synthesis temperatures and at the same time without increased polycondensation times, using maleic anhydride...
This non-specific property has shown to be a class of promising anti-infective agents that are assumed to defer long-term resistance development compared to small molecule antibiotics. 2.1. Mechanisms of action Essentially, all types of living cells comprise a cytoplasmic membrane made of lipid ...
You will notice some "fuzziness" in the way that the polyethylene structures are represented above. The squiggly lines at the ends of the long structure indicate that the same pattern extends indefinitely. The more compact notation on the right shows the minimal repeating unit enclosed in brackets...
Its capsular polysaccharide (CPS) was isolated and cleaved by a specific enzyme from a bacteriophage into a hexasaccharide-repeating unit. With GC–MS, NMR, and Mass analyses, the structure of KN2 CPS was determined to be {→3)-β-D-Glcp-(1→3)-[α-D-GlcpA-(1→4)-β-D-Glcp-(...
rights reserved 0032-3896/13 www.nature.com/pj Molecular-recognition-directed formation of supramolecular polymers Takeharu Haino In recent years, significant research effort has focused on creating supramolecular polymers that can be attained by specific host–guest interactions of the repeating units. ...
They are mainly described as shape-memory nanocomposites (SMCs) where the incorporation of functional (in)organic nanofillers in the SMP matrices is purposely carried out. Potential applications of the SMCs-based materials as medical and biomimetic devices, self-healing systems, self-deployable ...