9.1: Aliphatic Hydrocarbons - Chemistry LibreTexts
2022年8月10日 · Aliphatic hydrocarbons are hydrocarbons based on chains of C atoms. There are three types of aliphatic hydrocarbons. Alkanes are aliphatic hydrocarbons with only single covalent bonds. Alkenes are hydrocarbons that contain at least one C–C double bond, and a lkynes are hydrocarbons that contain a C–C triple bond.
Aliphatic compound - Wikipedia
The most important aliphatic compounds are: n-, iso- and cyclo-alkanes (saturated hydrocarbons) n-, iso- and cyclo-alkenes and -alkynes (unsaturated hydrocarbons). Important examples of low-molecular aliphatic compounds can be found in the list …
Self-assembled aliphatic chain extended polyurethane …
2014年5月1日 · Novel polyurethanes (PUs) have been synthesized using an aliphatic diisocyanate and aliphatic chain extenders with varying chain length. Nanocomposites of PUs have been prepared by dispersing 2-D nanoclay in poly-ol followed by prepolymerization and subsequent chain extension using various chain extenders.
Aliphatic amine mediated assembly of [M6(mna)6] (M = Cu/Ag) …
Aliphatic amine mediated assembly of [M 6 (mna) 6] (M = Cu/Ag) into extended two-dimensional structures: synthesis, structure and Lewis acid catalytic studies†
Design-properties relationships of polyurethanes elastomers …
2019年4月19日 · The polymers obtained with HD show a less roughness surface due to the aliphatic structure of the chain extender. Having an even number of CH 2 groups, such as 1,6 hexane diol, the chain extender exhibits a completely extended conformation.
Aromatic versus Aliphatic: Hydrogen Bonding Pattern in Chain‐Extended …
2018年2月15日 · Chain extender forces the formation of urea linkages close to each other, which in turn favors the formation of H-bonds in the hard segments. An optimal aromatic: aliphatic chain extender ratio was found to result in optimal H-bonding, which in turn reflected in terms of mechanical properties.
Structure formation and hydrogen bonding in all-aliphatic …
2013年4月1日 · Fully aliphatic segmented poly (ether ester amide) copolymers with uniform hard segments prepared by melt polycondensation of α,ω-hydroxyl end-functionalized polytetrahydrofuran and short glycine or β-alanine bisester–bisoxalamide units hold promise for biomedical applications.
In this section, we will discuss the two major types of electrophilic substitutions; SE2 (substitution electrophilic bimolecular) and SEi (substitution electrophilic internal) mechanisms.
Aliphatic chain length effects on photopolymerization kinetics …
2008年4月29日 · In this work the effect of the aliphatic tail length in a polymerizable amphiphilic molecule on order, polymerization kinetics, and structure evolution of reactive LLC systems is detailed. The polymerization kinetics are influenced by the initial LLC phase morphology with increases in the polymerization rate as the LLC phase order increases.
Structural Studies of Aliphatic Glucosinolate Chain-Elongation
2021年7月6日 · The core chemical structure of glucosinolates (left) consists of a β–D–glucosyl residue linked via a sulfur to a (Z)–N–hydroximinosulfate ester with and a variable amino acid-derived R group. Modifications of the aliphatic, aromatic, or indole R-group leads to the chemical diversity of this class of specialized metabolites.