Korea Research Institute of Chemical Technology

Pusan National University

Gachon University of Industry-Academic Cooperation Foundation

Jae Kwang Song

Bong Keun Song

Yong Hwan Kim

Jeong Yong Ryu

Eun Suk An

Hyun Jong Paik

Hyun Jeong

Chae Yeon Lee

Jeong Mi Kwon

Kee Hoon Won

Jong Hwa Jeong

Keehoon Won

Mohammad Abdul Kadir

Seung Yeong Park

Seong Soo An

Tae Heon Lee

The present invention relates to a method for preparing a protein cage which comprises: a 1step of preparing an amphiphilic polymer comprising a 1hydrophobic polymer and a 1hydrophilic functional group; a 2step of preparing a hydrophilic protein comprising a 2functional group binding to the 1functional group; a 3step of forming an amphiphilic polymer-protein hybrid by the binding of the 1functional group and the 2functional group, and forming core-shell structured particles comprising a protein shell and an amphiphilic polymer core by the self-assembly of the amphiphilic polymer in a hydrophilic solvent; and a fourth step of removing some or all of the hydrophobic polymer of the core part from the core-shell structured particles.

Method for preparing protein cage, and in situ method for preparing hydrophobic additive-supported core-shell structured polymer-protein particles

The present invention relates to a process for preparing phenolic polymers utilizingperoxidase. More particularly, the present invention relates to a process for preparing phenolic polymers by polymerizing phenolic monomers withperoxidase instead of using typical peroxidase which essentially requires the use of toxic formalin or peroxidase of plant origin which is very costly and easily deactivated by hydrogen peroxide in the polymerization of phenolic monomers, wherein the polymerization is conducted in the presence of a polar organic solvent under mild reaction conditions of atmospheric temperature and pressure to economically produce desired phenolic polymers having excellent water and chemical resistances with high yield.

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The present invention relates to a process for preparing a phenolic polymer using a phenothiazine-based mediator, in particular, to a process for preparing a phenolic polymer via polymerization of phenolic monomers by using a phenothiazine-based mediator in the presence of peroxidase biocatalyst and an oxidant, thereby drastically improving the enzyme reactivity of peroxidase. The phenolic polymers prepared according to the polymerization of this invention maintain unsaturated hydrocarbon groups linked to their side chains, so that they are very useful as a curing resin because they can easily form coatings through radical curing. In addition, the coating formed using the curing resin has an antioxidation effect and a low surface energy, so that they can prevent physical attachment of marine livings. Because the antifouling-causing functional groups are not consumed, the coatings continuously exhibit durability.

Process for preparing phenolic polymer by using phenothiazines mediator

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Daejeon, South Korea

Jae Kwang Song