Poly- , N-methylated

Cationic hydrophobic Poly(4-vinylbenzyltrimethylammonium chloride), poly(N-methyl-2-vinylpyridinium) iodide salt 0.5 M acetic acid with 0.3 M Na2SO,... 

Cationic hydrophobic Polyethyleneimine Poly(N-methyl-2-vinylpyridinium) salt 0.5 M NaOAc/ 0.5 M AcOH... 

Acid dissociation constants, UV and NMR spectral data for mono- and poly-N-methylated adenines 99H(51)2255. 

Poly(N-methyl- 2-vinylpyr inium bromide) (p(2-VPMeBr) ]... 

During the last decade, immobilization of oxidase type enzymes by physical entrapment in conducting or ionic polymers has gained in interest, particularly in the biosensor field. This was related to the possibility for direct electron tranfer between the redox enzyme and the electroconducting polymers such as polypyrrole (1,2), poly-N-methyl pyrrole (3), polyindole (4) and polyaniline (5) or by the possibility to incorporate by ion-exchange in polymer such as Nafion (6) soluble redox mediators that can act as electron shuttle between the enzyme and the electrode. 

A polymer related to poly-L-proline, in the sense that the amide nitrogen is substituted and, therefore, cannot take part in hydrogen bonding, is poly-N-methyl-L-alanine. Conformational energy calculations for this... 

Poly(N-methyl-ethylene imine) (PMEI) and related Polymers.60... 

Poly[N-methyl-N -(2-methyl-6-isopropylphenyl)carbodiimide] maintains its chiral conformation even at elevated temperatures, and poly[-N-dodecyl-N -l-naphthylcarbodiimide] displays birefringent cholesteric mesophases. Stable helical polyguanidines are obtained from the same carbodiimide using chiral titanium catalysts in the polymerization. Also, using a chiral titanium catalyst chirooptical switching polyguanidines are obtained from N-(l-anthranyl)-N -octadecylcarbodiimide. ... 

Polyvinylamine and its derivatives have been also used for the complexation of metal ions in homc eneous phase . Introduction of various chelating poups into polyvinylamine has been drown to result in a greater selectivity for complexation than polyvinylamine itself. Thus, poly(vinylaminodiacetate) has been found to be a selective complexing agent for copper and poly(N-methyl-N-vinylthiourea) for mercury ... 

According to Imanishi, Kugimiya and Higashimura (59), no difference in the reactivities is observed between the optical antipodes of phenylalanine NCA (8, R = CH2CeHs) in the polymerization initiated by the terminal secondary amino group of poly(N-methyl-S-alanine) (9). Although poly-(N-methyl-S-alanine) is considered... 

Figure 2.4. Schematic illustrations of repeat units of several of the polymers listed in Table 2.2. (a) Poly(thiocarbonyl fluoride), (b) Poly(glycolic acid), (c) Polyepichlorohydrin. (d) Poly(maleic anhydride), (e) Poly(N-methyl glutarimide). (f) Poly(N-phenyl maleimide). (g) Poly[3,5-(4-phenyl-1,2,4-triazole)-1,4-phenylene]. (h) Phenoxy resin, (i) Poly(oxy-1,4-phenylene-oxy-1,4-phenylene-carbonyl-l,4-phenylene). (j) Udel. (k) Victrex. (1) Tori on. (m) Ultem. (n) Resin F.

Dilute solution properties in water are very important for water-soluble polymers [27], not only in their characterization but also in determining their performance under actual use conditions. These polymers include the acrylamide polymers, namely polyacrylamide and its structural variants, whose range of applications encompasses their use as soil modifiers. The results of calculations [28] of the specific refractive index increments of random copolymers of acrylamide with N-benzyl methacrylamide and with N-methyl methacrylamide are shown in Figure 8.3. (See Section 17.E for the method used to calculate the properties of random copolymers.) The details of the calculations (not shown) indicate that (a) the specific volumes of the homopolymers are in the order polyacrylamide < poly(N-benzyl methacrylamide) < poly(N-methyl methacrylamide), and (b) the refractive indices are in the order polyacrylamide poly(N-methyl methacrylamide) poly(N-benzyl methacrylamide). The results shown for the copolymers in Figure 8.3 arise from the multiplicative combination of these trends. 

Poly(N-methyl glutarimide) Poly(oxy-2,2-dichloromethyltrimethylene) Poly(oxy-1,1 -dichloromethyltrimethylene) Poly(p-bromo styrene)... 

Imide groups which are not connected to an aromatic ring are not counted in determining when +41 should be added to NYd. For example, the imide rings in poly(N-methyl glutarimide) and poly(N-pheny] maleimide) (see Figure 2.4) do not contribute to NYd. 

---