High molecular weight block copolymers comprising repeating units derived from monomers comprising lactam and acryloyl moieties and hydrophilic monomers, compositions, and applications thereof
This application provides high molecular weight block copolymers comprising at least one block A comprising repeating units derived from monomers comprising lactam and acryloyl moieties and at least one block B comprising repeating units derived from hydrophilic monomers. The application further provides compositions comprising the block copolymers and applications thereof in various industrial areas including personal care. The application furthermore provides compositions comprising colloidal particles of the block copolymers. The variables x, y, R 8 and R 9 are described herein (I). Wherein each x and y is independently an integer having a value from about 10 to about 10000, and each R 8 , and R 9 is independently selected from the group consisting of hydrogen, methyl, and combinations thereof.
1 . A block copolymer consisting essentially of:
(a) at least one block A consisting of repeating units derived from at least one monomer a 1 ; and
(b) at least one block B comprising repeating units derived from at least one hydrophilic monomer b 1 selected from the group consisting of glyceryl (meth)acrylates, with the proviso that said copolymer has a number-average molecular weight of at least about 50,000 grams per mole;
wherein each said monomer a 1 has a structure:
2 . The block copolymer according to claim 1 having a number-average molecular weight of at least about 100,000 grams per mole.
3 . A composition comprising the block copolymer according to claim 1 , wherein the composition is a personal care composition, pharmaceutical composition, coating composition, construction composition, nutritional composition, agricultural composition, adhesive composition, oilfield composition, household, industrial and institutional composition, cementing fluid, servicing fluid, gravel packing mud, fracturing fluid, completion fluid, work-over fluid, spacer fluid, drilling mud, biocide, ink, paper, polish, membrane, metal working fluid, plastic, textile, printing composition, lubricant, detergent, battery composition, glass coating composition, or preservative composition.
4 . The composition comprising the block copolymer according to claim 1 , wherein the composition is a personal care composition further comprising at least one additive selected from the group consisting of UV actives, UV active solubilizers, oils, waxes, solvents, emulsifiers, preservatives, antioxidants, antiradical protecting agents, vitamins, perfumes, insect repellants, dyes, pigments, humectants, fillers, thickeners, film formers, stabilizers, buffers, spreading agents, pearlizing agents, electrolytes, acids, bases, crystalline structuring agents, abrasives, pharmaceutically or cosmetically acceptable excipients, and combinations thereof.
5 . A composition in the form of colloidal particles comprising a block copolymer wherein said copolymer consists essentially of:
(a) at least one block A consisting of repeating units derived from at least one monomer a 1 ; and
(b) at least one block B comprising repeating units derived from at least one hydrophilic monomer b 1 selected from the group consisting of glyceryl (meth)acrylates, with the proviso that said copolymer has a number-average molecular weight of at least about 50,000 grams per mole;
wherein each said monomer a 1 has a structure:
6 . The composition according to claim 5 wherein said particles have a mean diameter ranging from about 10 to about 1000 nanometer.