Amine-modified poly

Wang, B., Chen, L., AbdulaM-Kanji, Z., Horton, J.H., Oleschuk, R.D., Aging effects on oxidized and amine-modified poly(dimethylsiloxane) surfaces studied with chemical force titrations Effects on electroosmotic flow rate in microfluidic channels. Langmuir, 2003, 19, 9792-9798. 

Modification of the copolymer poly(HS-co-MMA) with EDA resulted in aminated modified poly(HS-co-MMA) (I) (Figure 9.2) the amination reaction occurred in methanol (a solvent). Results obtained by elemental analysis were in good agreement... 

The desired long spacer necessary to allow multiple branch construction, was obtained with commercial tetra(ethylene glycol) which was readily modified into aminoacetal 21 in five steps (Scheme 8). Using 21 as an amine source, poly(amidoamine) (PAMAM) dendrons were prepared according to published protocol using reiterative cycles of methyl acrylate and ethylenediamine reactions. The terminal amines of each generation (G = 1, G = 2 and G = 3, 22a-c) were obtained quantitatively from each of the half generation methyl ester precursors. 

Murugan E, Sherman RL Jr, Spivey HO, Ford WT. Catalysis by hydrophobically modified poly(propylenimine) dendrimers having quaternary ammonium and tertiary amine functionality. Langmuir 2004 20 8307-8312. 

It became of interest to see if we could obtain any indication of Schiff base formation with the polymer. Since spectroscopic probes would be obscured with the actual substrate, oxalacetate, because of the progress of the decarboxylation reaction (32), we have examined instead the spectra of oxalacetate-4-ethyl ester in solutions of the same modified poly-(ethylenimine) PEIQ—NH2. Such solutions develop a new absorption band at 290 nm. Furthermore, this band is essentially abolished if NaBH4 is added to the solution (Fig. 21). As is well known, NaBH4 reduces Schiff base linkages to amine groups.43-44... 

P liquid nonbonded Base-modified poly(ethylene glycol) 200 Amines and other volatile basic compounds... 

Poly(hydroxystyrene-co-methyl methacrylate) [poly(HS-co-MMA)] can be modified to add amino groups onto the side chain of the polymer. The amine-modified polymer can react with two classes of active compounds the first class is aldehydes such as vanillin, p-hydroxybenzaldehyde, P-chlorobenzaldehyde and anisaldehyde, and the second class is phenolic esters such as p-hydroxymethylbenzoate, 2,4-dihydroxymethyl benzoate and methyl salicylate. 

Commercially available poly(amidoamine) (PAMAM) dendrimers are the most commonly used dendrimers for electrochemical DNA detection. Recently, Zhu and coworkers [58] reported the use of a new class of PAMAM dendrimers with a trimesyl core and terminal carboxyl groups for DNA detection. Amine-modified target DNA was immobilized to the dendrimer using carbodiimide chemistry. Amine functionalized probe DNA was also immobilized to a mercaptoacetic acid self-assembling monolayer (SAM]-modified... 

The ability of thiol-ene click chemistry to retain high efficiency under the most benign reaction conditions was exempHfied by Ritter and Bardts, in the preparation of hydrogels based on methacryhc acid [224]. In this study, poly(methacrylic acid) polymers were modified with cysteamine and aUyl amine to afford complementary thiol-ene reactive polymer chains. Solutions of the polymer pairs in water were mixed in the presence of a radical initiator, and the formation of a highly elastic gel was observed within only 2 h at room temperature. The authors noted that this approach might have broad application for a rapid and straightforward access to hydrogel materials for which the properties could easily be tailored by the choice of the amine modifiers. 

Why is vegetable oil-modified poly(amido amine) widely used as a hardener for epoxy resins ... 

Wang, B. Oleschuk, R. D. Horton, J. H., Chemical Force Titrations of Amine-and Sulfonic Acid-Modified Poly(dimethylsiloxane). Langmuir 2005, 21, 1290-1298. 

For example, the attachment of poly(2-(methacryloyloxy) ethyl phosphate) (PMOEP) and poly(2-(acetoacetoxy)ethyl methacrylate) (PAAEMA) homo- and copolymers to an amine-modified glass slide was studied by Jasieniak et al. [153]. The partially preferential orientation of the PMOEP-h-PAAEMA copolymer could have significant implications on the interfacial interactions involved in the nucleation and... 

All of the above features make silica colloidal crystals ideal candidates for highly selective responsive nanoporous membranes. However, until 2005, there were no publications describing transport through surface-modified colloidal membranes. In 2005, Zharov group introduced, for the first time, the concept of permselective colloidal nanoporous membranes by describing pH-responsive amine-modified colloidal membranes with controlled transport of positively charged species [26]. Later, they reported a detailed study of transport through amine-modified colloidal membranes [27], as well as membranes modified with sulfonic acids [28,29], Methods to modify the colloidal nanopores with polymers were developed [30], which allowed us to introduce temperature-responsive poly(A-isopropylacrylamide) (PNIPAAM) [31], pH- and ion-responsive poly(2-(dimethylamino)ethyl methacrylate), PDMAEMA [32], and pH- and temperature-responsive poly(L-alanine) [33], and to study the molecular transport in these polymer-modified nanoporous coUoidal membranes as a function of the environmental conditions. In this chapter we summarize these results. 

Sen Gupta, A., Wang, S., Link, E., Anderson, E.H., Hofinann, C., Lewandowski, J., Kottke-Marchant, K., Marchant, R.E. Glyco-calyx-mimetic dextran-modified poly(vinyl amine) surfactant coating reduces platelet adhesion on medical-grade polycarbonate surface. Biomateiials 27, 3084—3095 (2006). doi 10.1016/j.bio materials.2006.01.002... 

Y. Haba, C. Kojima, A. Harada, T. Ura, H. Horinaka and K. Kono, Preparation of poly(ethylene glycol)-modified poly(amido amine) dendrimers encapsulating gold nanoparticles and their heat-generating ability. Langmuir, 23,5243-5246 (2007). 

Figure 7.4. (a) Synthesis of end-modified poly(beta-amino ester)s begins with the synthesis of acrylate-terminated polymer (Ex C32-Ac) by using an excess of diacrylate monomer for the reaction, (b) The acrylate-terminated polymer is end-capped by reacting it with (c) various amine-containing monomers, (d) Various acrylate-terminated PBAEs can also be similarly modified for improved efficacy. 

Takata et al. have recently developed a facile synthetic method of Harada s polyrotaxane, an efficient one-pot synthesis.A mixture of amine-terminated poly(tetrahydro-furan) and j6-CD was sonicated for 30 min in water, to which 3,5-dimethylphenylisocyanate was added at 0°C. By filtration, the corresponding polyrotaxane was obtained in about 50% yield. This method is much advantageous because permethylated jd-CD was also converted to the corresponding polyrotaxane (70% yield) that was first obtained by the solntion method, although Takata et al. have already reported the similar polyrotaxane syntheses in solid state with native and modified yS-CDs. ... 

---