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1. 发明申请

US20200299462A1 METHOD FOR PREPARING ULTRAVIOLET (UV) CURING POLYMETHYL SILOXANE CONTAINING ACRYLATE STRUCTURE 审中-公开
公开(公告)号：US20200299462A1
公开(公告)日：2020-09-24
申请号：US16770355
申请日：2019-02-27
申请人： CHANGZHOU UNIVERSITY
发明人： Xiaoqiang XUE , Bibiao JIANG , Wenyan HUANG , Hongjun YANG , Qimin JIANG , Jiayue SUN
IPC分类号： C08G77/38 , C08J7/04
摘要： The present invention relates to a method for preparing an ultraviolet (UV) curing polymethyl siloxane containing an acrylate structure: performing a Michael addition reaction with an amino silicone oil by means of an asymmetric diene acrylate ethylene glycol methacrylate, the double bond of asymmetric diene having a large difference in activity, and the acrylate structure preferentially undergoing addition with an amino group; thus, a methacrylic structure is successfully linked to a side chain of the methyl silicone oil, and a methyl silicone oil having a controllable structure and having a side group containing the methacrylate structure is prepared, the reaction having a high grafting rate; the described method is a high-efficiency, mild and controllable preparation method; a conventional compound photoinitiator is selected, and is coated on a substrate for UV curing, quickly curing at room temperature to form a film, and having the features of being clean and pollution-free.

2. 发明申请

US20230028363A1 POLYMERIZABLE SURFACTANT WITH REDUCIBILITY AND PREPARATION METHOD THEREFOR 有权
公开(公告)号：US20230028363A1
公开(公告)日：2023-01-26
申请号：US17936932
申请日：2022-09-30
申请人： CHANGZHOU UNIVERSITY
发明人： Wenyan HUANG , Li JIANG , Bibiao JIANG , Qimin JIANG , Hongjun YANG , Xiaoqiang XUE , Qiujie SUN
IPC分类号： C11D1/00
摘要： The present disclosure relates to a polymerizable surfactant with reducibility and a preparation method thereof. The acid anhydride is reacted with a long-chain fatty alcohol to obtain an intermediate of an anhydride monoester, and then the obtained intermediate is reacted with the hydrochloride of dimethylaminohalogenated alkane, and a polymerizable surfactant with reducibility is obtained by post-processing. The polymerizable surfactant can not only play a role as a reactive emulsifier and copolymerize with monomers to obtain a soap-free emulsion, but also form a redox initiation system with peroxide, and conduct redox emulsion polymerization at room temperature. The soap-free emulsion synthesized by the polymerizable surfactant synthesized can greatly reduce the energy consumption in production, and can carry out one-step emulsion polymerization at normal temperature or low temperature to obtain an environment-friendly emulsion with a branched structure, thereby obtaining coatings with excellent water resistance, weather resistance, and impact resistance.

3. 发明申请

US20220144986A1 REDUCING AGENT MONOMER FOR PREPARING STYRENE-ACRYLIC EMULSION BY OXIDATION-REDUCTION REACTION AT ROOM TEMPERATURE, AND SYNTHESIS METHOD THEREOF 有权
公开(公告)号：US20220144986A1
公开(公告)日：2022-05-12
申请号：US17414980
申请日：2020-12-29
申请人： CHANGZHOU UNIVERSITY
发明人： Wenyan HUANG , Qiujie SUN , Bibiao JIANG , Xiaoqiang XUE , Hongjun YANG , Li JIANG , Qimin JIANG
IPC分类号： C08F220/18 , C07C219/08
摘要： A reducing agent monomer for preparing a styrene-acrylic emulsion by an oxidation-reduction reaction at room temperature and a synthesis method thereof are disclosed. Maleic anhydride (MAH) and dimethylethanolamine (DMEA) are used as raw materials to synthesize the reducing agent monomer: 4-(2-(dimethylamino)ethoxy)-4-oxobut-2-enoic acid, and the synthesis method involves inexpensive easily-available raw materials, simple synthesis conditions, and easy purification. With the synthesized reducing agent monomer as a reducing agent, potassium persulfate (KPS) as an oxidizing agent, water as a dispersion medium, sodium dodecyl sulfate (SDS) as an emulsifier, and styrene, butyl acrylate (BA), and methylmethacrylate (MMA) as comonomers, free-radical microemulsion polymerization is conducted at room temperature to obtain a styrene-acrylic emulsion. In the synthesis of the styrene-acrylic emulsion, a monomer conversion rate is high, and a styrene-acrylic emulsion with a high molecular weight and a branched structure can be obtained at room temperature.

4. 发明申请

US20230018276A1 METHODS FOR PREPARING BRANCHED POLY (2-HYDROXYETHYL METHACRYLATE) AT ROOM TEMPERATURE BY INVERSE EMULSION POLYMERIZATION 有权
公开(公告)号：US20230018276A1
公开(公告)日：2023-01-19
申请号：US17935573
申请日：2022-09-26
申请人： CHANGZHOU UNIVERSITY
发明人： Wenyan HUANG , Bibiao JIANG , Li JIANG , Hongjun YANG , Qimin JIANG , Xiaoqiang XUE , Di ZHU
IPC分类号： C08F120/20
摘要： The present disclosure may generally relate to the field of polymer synthesis and provide a method for preparing branched poly(2-hydroxyethyl methacrylate) at room temperature by inverse emulsion polymerization. The method may include: using benzoyl peroxide as an oxidant, and 2-methyl-N-[3-(methyl-phenyl-amino)-propyl]-acrylamide as a reductant monomer to form a redox initiation system, water, and toluene as media, a nonionic surfactant as an emulsifier, 2-hydroxyethyl methacrylate as a monomer, reacting at room temperature and normal pressure to obtain branched poly(2-hydroxyethyl methacrylate). In the present disclosure, the polymerization system may be simple and stable, and the synthesis and purification of the reductant monomer may be simple, greatly reducing the polymerization cost. The reaction may not need temperature control and pressure control, with low energy consumption, easy operation, and less impact on the environment. The obtained branched poly(2-hydroxyethyl methacrylate) may have a high molecular weight. The molecular weight and a branching degree may be adjusted in a wide range. The method may be of great significance to the theoretical research and large-scale application of branched poly(2-hydroxyethyl methacrylate).

5. 发明申请

US20210189047A1 PROCESS FOR PREPARING AN ULTRA-HIGH MOLECULAR WEIGHT POLYMER VIA EMULSION POLYMERIZATION AT ROOM TEMPERATURE 有权
公开(公告)号：US20210189047A1
公开(公告)日：2021-06-24
申请号：US17188760
申请日：2021-03-01
申请人： Changzhou University
发明人： Wenyan HUANG , Bibiao JIANG , Xiaoqiang XUE , Hongjun YANG , Qimin JIANG
IPC分类号： C08F293/00 , C08F118/08 , C08F112/08 , C08F120/14 , C08F120/18 , C08F18/08 , C08F2/26
摘要： A process for preparing an ultra-high molecular weight polymer via emulsion polymerization at the room/indoor temperature includes using persulfate as initiator, water as medium, anionic surfactant as emulsifier, sodium bicarbonate as pH regulator, styrene, (meth) acrylate or vinyl acetate as monomer, which is subjected to a free radical polymerization at room temperature and the normal pressure. The ultra-high molecular weight polymers may have weight average molecular weights larger than 1,000,000 g/mol. The monomer conversion may be above 85% after reacting for 1˜6 hours. The process may be carried out at room temperature and normal pressure without the addition of other assist initiators. There temperature and pressure of the reaction may not be controlled, and the molecular weight and molecular weight distribution may be adjusted and controlled in a wider range.

6. 发明申请

US20190263946A1 A Process for Preparing Branched Polymer Via Emulsion Polymerization at Room Temperature 审中-公开
公开(公告)号：US20190263946A1
公开(公告)日：2019-08-29
申请号：US15736988
申请日：2017-04-20
申请人： Changzhou University
发明人： Wenyan HUANG , Bibiao JIANG , Xiaoqiang XUE , Hongjun YANG , Qimin JIANG
IPC分类号： C08F20/18 , C08F12/08 , C08F18/08 , C08F2/26 , C08K5/17 , C08K5/14 , C08K5/42
摘要： This invention discloses a process for preparing a branched polymer via emulsion polymerization at room temperature and is related to the field of polymer synthesis and preparation of functional polymers. A mixture of water as medium, anionic surfactant as emulsifier, sodium bicarbonate as pH regulator, the reductant monomer containing both polymerizable double bond and the reducing group combined with the persulfate as the oxidant to be useful as initiator, styrene, (meth) acrylate or vinyl acetate as monomer, is reacted to synthesize the branched polymers via a free radical in-situ emulsion polymerization at room temperature and ambient pressure. The monomer conversion can be above 85% in a range of about 10 mins to 10 hours of the reaction time. The process for preparing a branched polymer is carried out under the conditions of emulsion polymerization at room temperature and normal pressure without the addition or assistance of the branched monomer and other initiators. The advantages of this process are: it is a simple, feasible and stable polymerization process; no need to control temperature and pressure of the reaction; leads to low energy consumption, less impact on the environment, short reaction time and high monomer conversion; achieves high molecular weight and narrow molecular weight distribution of the branched polymers synthesized; results in low cost of the production owing to the direct use of commercial polymerizable reductant monomer in the reaction. The polymerization process of this invention also has many other advantages such as ease of operation, use of mild conditions, an environmentally friendly and low-cost process with a controllable degree of branching for the polymer, and highly suitable for synthesizing branched polymers from various monomers. The above advantages of this process are of great significance for the research and development and application of the branched polymers.

7. 发明申请

US20180371143A1 A PROCESS FOR PREPARING AN ULTRA-HIGH MOLECULAR WEIGHT POLYMER VIA EMULSION POLYMERIZATION AT ROOM TEMPERATURE 审中-公开
公开(公告)号：US20180371143A1
公开(公告)日：2018-12-27
申请号：US15742407
申请日：2017-04-20
申请人： Changzhou University
发明人： Wenyan HUANG , Bibiao JIANG , Xiaoqiang XUE , Hongjun YANG , Qimin JIANG
IPC分类号： C08F293/00
摘要： The invention discloses a process for preparing an ultra-high molecular weight polymer via emulsion polymerization at the room temperature, belonging to the fields of polymer synthesis. Persulfate as initiator, water as medium, anionic surfactant as emulsifier, sodium bicarbonate as pH regulator, styrene, (meth) acrylate or vinyl acetate as monomer, is subjected to a free radical polymerization at room temperature and the normal pressure. The ultra-high molecular weight polymers were successfully obtained, which the weight average molecular weight of the polymers were larger than 100×104 g/mol. The monomer conversion can be above 85% after the reaction was proceeded about 1˜6 hours. The process for preparing an ultra-high molecular weight polymer is carried out under the conditions of conventional free radical emulsion polymerization at the room temperature and normal pressure without the addition of other assist initiators. There is no need to control temperature and pressure of the reaction, low energy consumption, short reaction time and high monomer conversion, ultra-high molecular weight and narrow molecular weight distribution of the polymers achieved, and the molecular weight and molecular weight distribution can be adjusted and controlled in a wider range. The polymerization is simple and stable, the commercial materials can be directly used in the reaction, which greatly reduce the cost, easy operation, mild conditions and the environmental friendly process. This process is highly suitable for synthesizing ultra-high molecular weight polymers from various monomers. These advantages of this process is of great significance for the research and application of ultra-high molecular weight polymers.

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