Side chain length, effect

Binary Monolayer Side Chain Length Effect. 88... 

Rodriguez-Saona CR, Maynard DF, Phillips S, Trumble JT, AlkyRurans Effects of alkyl side-chain length on insecticidal activity, J Nat Prod 62 191—193,... 

This chapter aims to summarize our efforts to investigate the effects of fluorinated amino acid substitutes on the interactions with natural protein environments. In addition to a rather specific example concerning the interactions of small peptides with a proteolytic enzyme, we present a simple polypeptide model that aids for a systematic investigation of the interaction pattern of amino acids that differ in side chain length as well as fluorine content within both a hydrophobic and hydrophilic protein environment. Amino acid side chain fluoiination highly affects polypeptide folding due to steric effects, polarization, and fluorous interactions. 

In a further study, the effects of side chain length and lanthanide salt were investigated [78]. It was found that the chain length only plays a minor role and that the phase transition temperatures to the Colh and the isotropic phase remain... 

Effect of Side Chain Length. The side chain bound to the cation also affects the Tm due to flexibility and excluded volume effects. To discuss the relation between side chain structure and Tm, the onium cation structure was fixed. The relation between the side chain structure and the thermal properties of imidazolium salts has already been reported by Seddon et al. [16, 17]. The effect of alkyl chain length of 1-alkyl-3-methylimidazolium tetrafluoroborate on the phase transition temperatures is... 

Fig. 10. Effect of side chain length in the amino acid moiety of polydepsipeptides on the in vivo degradability...

System I has been modeled with both Nafion and SSC PFSA membrane to stndy the effect of side chain length on the morphology. The interfacial systems have been stndied nsing Nafion. 

The validity of MD simulation is impacted by the choice of system, interaction potential and algorithm implemented. We first discuss the choice of system. In this work we chose to simulate Nafion with an equivalent weight (EW) of 1144 g/mol, which is a practically reasonable EW. In order to have a direct comparison of the effect of side chain length, SSC PFSA polymer electrolyte was simulated with an EW of 978 g/mol. (Commonly used SSC iono-mer has an EW 800 g/mol). The repeat units of these PFSA membranes are shown in Fig. 3. These two materials have the same backbone separating side chains thus the only differentiating feature is side chain length. 

In this chapter, the properties of a series of poly(dimethylsiloxane-co-methylalkylsiloxane) (PDM-PMAS) of various alkyl side-chain lengths are discussed. These polymers contain 3.5 mol % methylalkylsiloxane units and are prepared from the same precursor thus, any effects due to variations in the percentage of alkyl substitution and main-chain molecular weight differences and effects due to block distribution of the alkyl substituents are eliminated. 

Effect of Side Chain Length for Precursor. Figure 2 shows both the storage modulus, G, and loss modulus, G", as a function of temperature for the LSC 1140 EW and SSC 800 EW polymers in the thermo-... 

Figure 6. Effect of side chain length and mole percent comonomer on the percent crystallinity by WAXS.

Figure 15. Effect of side chain length on the dynamic mechanical behavior of the sodium sulfonate polymer.

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