Materials and methods for protein purification, and particularly for protein purification by ammonium sulfate precipitation, are provided herein.

Materials and methods for protein purification, and particularly for protein purification by ammonium sulfate precipitation, are provided herein.

A coating composition may include a modified polyvinyl alcohol resin (A) having an ethylene unsaturated group in a side chain thereof. Examples of the modified polyvinyl alcohol resin (A) include those including a structural unit represented by formula (II) or (III). Substrates in various technical fields such as the resin molding field, automobile/railway/aircraft/ships-related field, medical product field, food field, agriculture/gardening field, electrical field, and construction field can be coated with such a coating composition.

A coating composition may include a modified polyvinyl alcohol resin (A) having an ethylene unsaturated group in a side chain thereof. Examples of the modified polyvinyl alcohol resin (A) include those including a structural unit represented by formula (II) or (III). Substrates in various technical fields such as the resin molding field, automobile/railway/aircraft/ships-related field, medical product field, food field, agriculture/gardening field, electrical field, and construction field can be coated with such a coating composition.

The present invention relates to an electrically conductive polymer composition having high dispersion stability in long-term storage without being influenced by air temperature changes in the winter season, the summer period, etc. and a method for stably storing an electrically conductive polymer solution. An electrically conductive polymer composition comprising at least a N-vinyl carboxylic acid amide polymer having a weight-average molecular weight within the range of not less than 5000 and not more than one million, an electrically conductive polymer, and a solvent. A method for stably storing an electrically conductive polymer solution, the method comprising adding, to an electrically conductive polymer solution, a N-vinyl carboxylic acid amide polymer having a weight-average molecular weight within the range of not less than 5000 and not more than one million.

The present invention relates to an electrically conductive polymer composition having high dispersion stability in long-term storage without being influenced by air temperature changes in the winter season, the summer period, etc. and a method for stably storing an electrically conductive polymer solution. An electrically conductive polymer composition comprising at least a N-vinyl carboxylic acid amide polymer having a weight-average molecular weight within the range of not less than 5000 and not more than one million, an electrically conductive polymer, and a solvent. A method for stably storing an electrically conductive polymer solution, the method comprising adding, to an electrically conductive polymer solution, a N-vinyl carboxylic acid amide polymer having a weight-average molecular weight within the range of not less than 5000 and not more than one million.

There is provided a radiation dosimetry gel that is usable in a polymer gel dosimeter having an improved sensitivity and high safety.

A radiation dosimetry gel comprising a gelator, and a compound of the following Formula (1):

##STR00001##

(wherein R.sup.1 is a hydrogen atom or a methyl group;

m and n are each an integer of 2 to 4;

k is 0 or 1; and

plurality of R.sup.1s and ms are each the same as or different from one another) and a radiation dosimeter comprising the radiation dosimetry gel as a material for radiation dosimetry.

There is provided a radiation dosimetry gel that is usable in a polymer gel dosimeter having an improved sensitivity and high safety.

A radiation dosimetry gel comprising a gelator, and a compound of the following Formula (1):

##STR00001##

(wherein R.sup.1 is a hydrogen atom or a methyl group;

m and n are each an integer of 2 to 4;

k is 0 or 1; and

plurality of R.sup.1s and ms are each the same as or different from one another) and a radiation dosimeter comprising the radiation dosimetry gel as a material for radiation dosimetry.

Polyamines are water-soluble polyelectrolytes with the amino groups that can be used to attach the polymers onto functional surfaces of fibrous materials. In addition, polyamines can be readily modified by (super)nucleophilic groups such as (alkyl)aminopyridines that enhance the polymer's ability to promote hydrolysis of organophosphorous chemical warfare agents. Furthermore, attachment of hydantoin moieties augments the number of the imide, amide, or amine groups on the polyamine's chain, which provides oxidizing properties to the resulting modified polyamine after halogenation. In one aspect, disclosed herein are polyamines with side chains modified to contain both (4-aminopyridine, APy) and 5-(4-hydroxybenzylidene)hydantoin (HBH) functionalities with enhanced content of the active bromine. Viricidal activity of the APy- and HBH-modified polyallylamine against human coronavirus (type 229E) was tested both in solution and on nylon-cotton fabric. The polymers are effective at inactivating the coronavirus, at both low concentrations and short exposure times.

Disclosed is a formulation comprising a copolymer comprising one or more high refractive index first monomers and one or more second monomers comprising a reactive side chain and one or more solvents. The formulation may optionally contain additional components. Further disclosed are methods for forming optical thin films from the formulation and optical devices containing the optical thin films.