Glycol resins

Initial solid phase synthesis25 was carried out on Merrifield s resin (1 % crosslinked chloromethylated styrene/divinylbenzene copolymer, 200-400 mesh) because of its track record in solid-phase peptide synthesis.26 Unfortunately, the Merrifield resin has limitations as a carbohydrate carrier to study interactions between the carbohydrates and relevant binding proteins. The hydrophobic nature of the resin leads to nonspecific, irreversible protein adsorption.27 Later work utilized Rapp s TentaGel, an amphiphilic, polyethylene glycol resin.28... 

The phthalic anhydride, maleic anhydride and glycol resins. These are generally referred to as general-purpose orthophthalic resins , or simply GP Ortho resins . 

Unsaturated polyesters are generally very brittle materials. The tensile elongation for most UPRs is in the range of 1 % for dicyclopentadiene (DCPD)-based polyester resin to about 2.5 % for isophthalic acid and propylene glycol resins. This 1 % elongation posts a problem for using DCPD resin in making a... 

A curable polypropylene glycol resin containing trimethoxysilyl termini, (II), having good adhesiveness and storage stability properties was prepared by Wakabayashi et al. (1) and used in water-based paint formulations. 

Bradley described the first solid-phase synthesis of PAMAM dendrimers in 1997 [220]. To this end, phthaloyl-protected norspermidine was coupled to aminomethyl functionalised polystyrene-polyethylene-glycol resin ((PS-PEG)-NH2) through an acid-labile linker (see Fig. 23). PAMAM dendrons were assembled by treating deprotected scaffold-bound resin 24 first with an excess of methyl acrylate... 

NPG GIycd. [Eastman] Neopentyl glycol resin intermediate. 

Modern form 1939 Solvent dyes 50 or mineral oil 1950 and later glycol resins, polymers Fatty acids... 

The approach developed by Suzuki et al. [8] was further optimized supplementing the electrode with screen-printed layer of poly(ethylene glycol) resin cmitaining powdered (grinded) KCl and poly(vinyl pyrrolidone) [11]. The polymer and KQ were dispersed in 2-propanol, which was (after printing) allowed to evaporate in room temperature. Thus obtained reference electrodes were able to maintain relatively stable ( 1 mV) potential over 100 h, which was insignificant to change of KQ activity or solution pH. 

Common practice has been to use the fimctional silanes as separate compounding ingredients. This necessitates careful control of addition sequence and proeedures because the silane must react with the silica surface in preferenee to all other components in order to be optimally effective. Aggresive eompetitors for the silica smface are amines, glycols, resins, metal oxides, and other silica particles (agglomeration). 

Scheme 8.27 Amphiphilic polysterol/polyethylene glycol resins supported palladium-phosphine complex-catalyzed reactions.

---