| 摘要 |
<p>Core-shell polymers, or polymers having at least a hydrophobic portion, are provided. The polymers also have either a hydrophilic portion, or, alternatively, one or more surfactants may be employed in conjunction with a given polymer. The polymers incorporate the following moieties: [(A)m (B)n (C)p (D)q (E)r]x wherein A, B, C, D, and E represent functionalities as follows: A = hydrophobic component controlling solubility in organic solvents selected from moieties which, when polymerized, have a glass transition temperature (Tg) in the range between -150 and +25 DEG C; B = hydrophobic and solvent barrier composed of at least one moiety which, when polymerized, has a Tg greater than 25 DEG C; C = hydrophilic dispersant, selected from a wide variety of water-soluble moieties, such as poly(ethylene glycol) units, vinyl pyrrolidones, vinyl imidazoles, and acrylamides; D = hydrophobic UV absorber; E = highly polar functional group; m = 5 to 95; n = 5 to 95; p = 0 to 60; q = 0 to 50; r = 0 to 40; m + n + p + q + r = 100; and x = 1 to 100,000. Either the C moiety or the E moiety must be present in the polymer to provide a polymer having either a hydrophilic portion or a highly polar portion. Alternatively, a surfactant may be used in conjunction with the polymer, whether in the presence or the absence of the C or E, or both, moieties.</p> |
