A supramolecular star-shaped polymer with -CD as a core and a preparation method thereof. The supramolecular star-shaped polymer with -CD as a core has a -cyclodextrin-modified branched monomer F--CD that serves as a core and is grafted with acrylamide, acrylic acid, hydrophobic monomers and surface-active macromolecular monomers to form a supramolecular star-shaped polymer. The hydrophobic monomer is one or more of N-benzyl-N alkyl (meth) acrylamide and N-phenethyl-N alkyl (meth) acrylamide; the surface-active macromolecular monomer is one or more of allyl polyoxyethylene ether, alkylphenol polyoxyethylene ether (meth)acrylate, allyl alkylphenol polyoxyethylene ether, alkyl alcohol polyoxyethylene ether (meth)acrylate and allyl alkyl alcohol polyoxyethylene ether. The method has cheapness and easiness to obtain raw materials, ease to control synthesis conditions, and high yield. The present invention has excellent tackifying performance, temperature resistance, salt resistance and hydrolysis resistance, so that it shows good application prospects in the aspect of enhancing recovery ratios and hydraulic fracturing in oilfields.

A supramolecular star-shaped polymer with -CD as a core and a preparation method thereof. The supramolecular star-shaped polymer with -CD as a core has a -cyclodextrin-modified branched monomer F--CD that serves as a core and is grafted with acrylamide, acrylic acid, hydrophobic monomers and surface-active macromolecular monomers to form a supramolecular star-shaped polymer. The hydrophobic monomer is one or more of N-benzyl-N alkyl (meth) acrylamide and N-phenethyl-N alkyl (meth) acrylamide; the surface-active macromolecular monomer is one or more of allyl polyoxyethylene ether, alkylphenol polyoxyethylene ether (meth)acrylate, allyl alkylphenol polyoxyethylene ether, alkyl alcohol polyoxyethylene ether (meth)acrylate and allyl alkyl alcohol polyoxyethylene ether. The method has cheapness and easiness to obtain raw materials, ease to control synthesis conditions, and high yield. The present invention has excellent tackifying performance, temperature resistance, salt resistance and hydrolysis resistance, so that it shows good application prospects in the aspect of enhancing recovery ratios and hydraulic fracturing in oilfields.

The invention belongs to the technical field of battery dispersing materials, and discloses a preparation method of a comb-shaped positive electrode dispersing material, which comprises the following steps of: mixing a solvent, an unsaturated cyclic monomer, unsaturated branched polyether and a (methyl) acrylate monomer to obtain a mixed solution; heating the mixed solution to a reaction temperature, adding an initiating agent, and keeping the reaction temperature for reaction to obtain a semi-finished product; and adding phosphoric acid which is equal to the (methyl) acrylate monomer in mole into the semi-finished product for esterification and high-temperature dehydration to obtain the comb-shaped positive dispersing material. The invention further discloses a preparation method of a low-internal-resistance electrode plate by taking the comb-shaped positive electrode dispersion material as a raw material.

A method of making a branched polymer comprising (CC)(CC)CO groups is provided. The method comprises: (i) Providing, in admixture, at least one monofunctional monomer comprising one polymerisable carbon-carbon double bond per monomer, at least one multifunctional monomer comprising at least two polymerisable carbon-carbon double bonds per monomer, at least one chain transfer agent comprising a carbonyl group; (ii) Forming a polymer from the mixture; and (iii) Hydrolysing the polymer. A branched polymer is further provided.

A method of making a branched polymer comprising (CC)(CC)CO groups is provided. The method comprises: (i) Providing, in admixture, at least one monofunctional monomer comprising one polymerisable carbon-carbon double bond per monomer, at least one multifunctional monomer comprising at least two polymerisable carbon-carbon double bonds per monomer, at least one chain transfer agent comprising a carbonyl group; (ii) Forming a polymer from the mixture; and (iii) Hydrolysing the polymer. A branched polymer is further provided.

Monomers, polymers and copolymers are provided that incorporate at least one naturally occurring phenolic compound, such as a plant phenol.

The present invention provides polymers containing an acetoacetate moiety. The polymers may be readily functionalized and the functionalized polymers may be further derivatized to provide a wide variety of useful polymers having desirable chemical and physical properties. The polymers of the present invention may be employed in a wide variety of compositions, wherein R.sub.1-R.sub.6, w, y, and z are described herein.

##STR00001##

The present invention provides polymers containing an acetoacetate moiety. The polymers may be readily functionalized and the functionalized polymers may be further derivatized to provide a wide variety of useful polymers having desirable chemical and physical properties. The polymers of the present invention may be employed in a wide variety of compositions, wherein R.sub.1-R.sub.6, w, y, and z are described herein.

##STR00001##

Monomers, polymers and copolymers are provided that incorporate at least one naturally occurring phenolic compound, such as a plant phenol.

According to one embodiment, a composition including a compound is provided. The compound includes a linking group containing 2 to 18 carbon atoms, a polymerizable functional group bonded to the linking group, a first reactive group bonded to the linking group, and a second reactive group bonded to the linking group. The polymerizable functional group includes at least one of a (meth)acryloyl group or a vinyl group. The first reactive group includes at least one selected from the group consisting of a thiol group, a disulfide group, and a thiocyanate group. The second reactive group includes at least one selected from the group consisting of an alkoxysilane group, a chlorosilane group, and a hydroxyl group.