The present disclosure relates to compositions comprising a copolymer derived from a vinyl aromatic monomer, a (meth)acrylate monomer, an acid monomer, and a copolymerizable surfactant and compositions comprising the same. The (meth)acrylate monomer can be selected from a monomer having a theoretical glass transition temperature (T.sub.g) for its corresponding homopolymer of 0 C. or less or a hydrophobic (meth)acrylate monomer. In some embodiments, the copolymer is further derived from an organosilane. The copolymers can have a theoretical glass transition temperature (T.sub.g) from 60 C. to 80 C. and a number average particle size of 250 nm or less. The compositions can be used to prepare compositions such as coatings that have improved water resistance, blush resistance, and/or resistance to hydrostatic pressures. Methods of making the copolymers are also provided.

The present disclosure relates to compositions comprising a copolymer derived from a vinyl aromatic monomer, a (meth)acrylate monomer, an acid monomer, and a copolymerizable surfactant and compositions comprising the same. The (meth)acrylate monomer can be selected from a monomer having a theoretical glass transition temperature (T.sub.g) for its corresponding homopolymer of 0 C. or less or a hydrophobic (meth)acrylate monomer. In some embodiments, the copolymer is further derived from an organosilane. The copolymers can have a theoretical glass transition temperature (T.sub.g) from 60 C. to 80 C. and a number average particle size of 250 nm or less. The compositions can be used to prepare compositions such as coatings that have improved water resistance, blush resistance, and/or resistance to hydrostatic pressures. Methods of making the copolymers are also provided.

We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0.05 to about 0.33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight. We further disclose a method of shrink-wrapping an object or a group of objects by wrapping the object or the group of objects with a film containing the composition, to yield a wrapped object or group of objects, and heating the wrapped object or group of objects to a temperature and for a duration sufficient to shrink the film in at least a first direction, to yield a shrink-wrapped object or group of objects.

We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0.05 to about 0.33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight. We further disclose a method of shrink-wrapping an object or a group of objects by wrapping the object or the group of objects with a film containing the composition, to yield a wrapped object or group of objects, and heating the wrapped object or group of objects to a temperature and for a duration sufficient to shrink the film in at least a first direction, to yield a shrink-wrapped object or group of objects.

Acid-functionalized copolymers of methyl methacrylate having relatively high glass transition temperatures and molecular weights may be employed to manufacture articles having high light transmission values, low haze, high heat resistance, and high environmental stability, which are useful as optical protection films, zero-zero optical retardation films, and compensation films as well as lighting pipes and optical imaging lenses.

Acid-functionalized copolymers of methyl methacrylate having relatively high glass transition temperatures and molecular weights may be employed to manufacture articles having high light transmission values, low haze, high heat resistance, and high environmental stability, which are useful as optical protection films, zero-zero optical retardation films, and compensation films as well as lighting pipes and optical imaging lenses.

A functionalized diblock copolymer. The chemical structure of the functionalized diblock copolymer is shown in Formula II. The functionalized diblock copolymers or polymer particles can be widely used in tumor imaging, tumor treatment and other fields. It not only has good safety, realizes faster and adjustable (by changing the structure and number of functional groups) degradation and removal of polymers under acidic conditions, but also has excellent specificity and high-quality imaging effects at the target site, with high signal-to-noise ratio, clear boundaries, and long half-life. It solves the problem of fluorescence imaging technology in real-time intra-operative navigation, which has a good industrialization prospect.

A functionalized diblock copolymer. The chemical structure of the functionalized diblock copolymer is shown in Formula II. The functionalized diblock copolymers or polymer particles can be widely used in tumor imaging, tumor treatment and other fields. It not only has good safety, realizes faster and adjustable (by changing the structure and number of functional groups) degradation and removal of polymers under acidic conditions, but also has excellent specificity and high-quality imaging effects at the target site, with high signal-to-noise ratio, clear boundaries, and long half-life. It solves the problem of fluorescence imaging technology in real-time intra-operative navigation, which has a good industrialization prospect.

A non-aqueous secondary battery binder polymer including a first structural unit derived from a monomer (a1), a second structural unit derived from a monomer (a2), and a third structural unit derived from a monomer (a3), wherein the monomer (a1) is a non-ionic compound having only one ethylenically unsaturated bond, the monomer (a2) is a compound having a carboxy group and only one ethylenically unsaturated bond, and the monomer (a3) is a polyrotaxane including a cyclic molecule having a cyclic framework to which a group containing an ethylenically unsaturated bond is bonded and a chain molecule that passes through an openings of the cyclic molecule and has stopper groups at both ends.