Solution

A copolymer according to the present disclosure is a copolymer of a compound represented by Formula (1) and a compound represented by Formula (2). R.sup.1 and R.sup.4 are each independently a hydrogen atom or a methyl group. R.sup.2 and R.sup.3 are each independently a hydrogen atom or an alkyl group having from 1 to 4 carbon atom(s). R.sup.5 and R.sup.6 are each independently an alkyl group having from 1 to 4 carbon atom(s). x, y, and z are each independently an integer from 1 to 4.

Solution

A copolymer according to the present disclosure is a copolymer of a compound represented by Formula (1) and a compound represented by Formula (2). R.sup.1 and R.sup.4 are each independently a hydrogen atom or a methyl group. R.sup.2 and R.sup.3 are each independently a hydrogen atom or an alkyl group having from 1 to 4 carbon atom(s). R.sup.5 and R.sup.6 are each independently an alkyl group having from 1 to 4 carbon atom(s). x, y, and z are each independently an integer from 1 to 4.

The present invention relates to a polymer of formula I, a cosmetic composition comprising the polymer of formula I, a method of synthesizing the polymer of formula I; and use of the polymer of formula Ito provide a benefit in a photoresponsive way.

The present invention relates to a polymer of formula I, a cosmetic composition comprising the polymer of formula I, a method of synthesizing the polymer of formula I; and use of the polymer of formula Ito provide a benefit in a photoresponsive way.

A substrate for producing cell aggregates provided with a plurality of spots which comprises a polymer containing a recurring unit derived from a monomer represented by the following formula (I):

##STR00001##

wherein U.sup.a1, U.sup.a2, R.sup.a1 and R.sup.a2 are as defined herein, on a substrate having an ability to inhibit adhesion of cells, wherein a ratio of a total area of the spots to a surface area of the substrate is 30% or more, a diameter of each spot is 50 to 5,000 μm, and a distance between the spots is 30 to 1,000 μm, a method for producing the same, and a method for producing cell aggregates using such a substrate and a method of improving cell utilization efficiency at the time of producing the cell aggregates.

The copolymer of the present disclosure comprises a first structural unit represented by Formula (1) and a second structural unit represented by Formula (2). In Formula (1), R.sup.1 is a hydrogen atom or a methyl group. R.sup.2 and R.sup.3 are each independently a hydrogen atom or an alkyl group having from 1 to 4 carbons. x1 is an integer of 1 to 4.

In Formula (2), R.sup.4 is a hydrogen atom or a methyl group. R.sup.5 and R.sup.6 are each independently a hydrogen atom or an alkyl group having from 1 to 4 carbons. x2 is an integer of 1 to 4, and y is an integer of 3 to 7.

The copolymer of the present disclosure comprises a first structural unit represented by Formula (1) and a second structural unit represented by Formula (2). In Formula (1), R.sup.1 is a hydrogen atom or a methyl group. R.sup.2 and R.sup.3 are each independently a hydrogen atom or an alkyl group having from 1 to 4 carbons. x1 is an integer of 1 to 4.

In Formula (2), R.sup.4 is a hydrogen atom or a methyl group. R.sup.5 and R.sup.6 are each independently a hydrogen atom or an alkyl group having from 1 to 4 carbons. x2 is an integer of 1 to 4, and y is an integer of 3 to 7.

Monomers, polymers formed from such monomers, and articles for biomaterial capture including such polymers, wherein the monomer is represented by the following general Formula (I): CH.sub.2═CR.sup.1—C(═O)—X—R.sup.2—Z—X.sup.3—NR.sup.3—C(═X2)-X.sup.1—R.sup.4, wherein: R.sup.1 is H or —CH.sub.3; R.sup.2 is a (hetero)hydrocarbylene; X is —O— or —NH—; X.sup.1 is —O—, —S—, —NH—, or a single bond; X.sup.2 is —O— or —S—; X.sup.3 is —O— or —NR.sup.5—; R.sup.4 is hydrogen, (hetero)hydrocarbyl, or —N(R.sup.3).sub.2; each R.sup.3 and R.sup.5 is independently hydrogen or a (hetero)hydrocarbyl; and Z is —C(═O)— or —NH—C(═O)—.

Monomers, polymers formed from such monomers, and articles for biomaterial capture including such polymers, wherein the monomer is represented by the following general Formula (I): CH.sub.2═CR.sup.1—C(═O)—X—R.sup.2—Z—X.sup.3—NR.sup.3—C(═X2)-X.sup.1—R.sup.4, wherein: R.sup.1 is H or —CH.sub.3; R.sup.2 is a (hetero)hydrocarbylene; X is —O— or —NH—; X.sup.1 is —O—, —S—, —NH—, or a single bond; X.sup.2 is —O— or —S—; X.sup.3 is —O— or —NR.sup.5—; R.sup.4 is hydrogen, (hetero)hydrocarbyl, or —N(R.sup.3).sub.2; each R.sup.3 and R.sup.5 is independently hydrogen or a (hetero)hydrocarbyl; and Z is —C(═O)— or —NH—C(═O)—.

To provide a liquid repellent composition which is excellent in liquid repellency and durability and an article having a liquid repelling film. A liquid repellent composition comprising a copolymer (I) and a copolymer (II), characterized in that the copolymer (I) containing from 65 to 95 mass % of a polymerized unit (a) (referred to as “[a.sub.1]”) and from 1 to 30 mass % of a polymerized unit (b); and the copolymer (II) containing from 25 to 80 mass % of a polymerized unit (a) (referred to as “[a.sub.2]”) and from 1 to 50 mass % of a polymerized unit (c) are contained in an amount of the copolymer (I)/the copolymer (II)=10/90 to 95/5 (mass ratio), and [a.sub.1]−[a.sub.2]≧10 (mass %).