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1. 发明授权

US09896539B2 Method for synthesizing poly(butylene adipate-co-terephthalate) 有权
公开(公告)号：US09896539B2
公开(公告)日：2018-02-20
申请号：US15263322
申请日：2016-09-12
申请人： Nanjing University
发明人： Hong Li , Quanxing Zhang , Xiangqian Sun , Yunlong Xu , Wei Huang , Aimin Li
IPC分类号： C08G63/183 , C08G63/85 , C08G63/87 , C08G63/80
CPC分类号： C08G63/87 , C08G63/183 , C08G63/80 , C08G63/85
摘要： A method for synthesizing poly(butylene adipate-co-terephthalate) by combination of melt and solid state polycondensation using an organic guanidine as a main catalyst. The ternary catalyst system includes a main catalyst, a first cocatalyst, and a second cocatalyst. The main catalyst is organic guanidine; the first cocatalyst is titanate ester or zirconate ester; and the second cocatalyst is metallic oxide. The method includes: 1) adding 1,4-butanediol (BDO), adipic acid (AA), terephthalic acid (TA), and a ternary catalyst system to a reaction still; conducting an oligo-polycondensation to yield a oligomer having the weight average molecular weight (Mw) of between 3.0×103 and 4.0×103; allowing the oligomer to perform a melt polycondensation (MP) to yield a prepolymer with medium Mw of between 1.5×104 and 3.0×104; and 2) crushing the solid prepolymer into granules of 30-40 meshes, and then allowing the granules to undergo solid state polycondensation to yield the final PBAT product.

2. 发明授权

US09845377B2 Method for preparing high molecular weight poly-L-lactic acid 有权
公开(公告)号：US09845377B2
公开(公告)日：2017-12-19
申请号：US14854009
申请日：2015-09-14
申请人： Nanjing University
发明人： Hong Li , Quanxing Zhang , Xupeng Zong , Aimin Li , Wei Huang , Wei Jiang
IPC分类号： C08G63/08 , C08G63/78 , C08G63/82
CPC分类号： C08G63/08 , C08G63/78 , C08G63/823
摘要： A method for preparing high molecular weight poly(L-lactic acid) with high performance, including: a) providing a biogenic guanidine (BG) as a catalyst, and a nontoxic acid salt of an essential metal trace element as an activator (Act), and adding the catalyst, the activator, and L-lactide monomer to a polymerization reactor; b) evacuating under vacuum and charging the polymerization reactor with nitrogen for three consecutive times to remove air, and allowing the L-lactide monomer to undergo bulk polymerization under vacuum. The bulk polymerization includes a first reaction stage and a second reaction stage, which are separately carried out at different temperatures, pressures, and reaction times.

3. 发明授权

US09630942B2 Technological method for synthesis of optically pure L-/D-lactide catalyzed by biogenic guanidine 有权
公开(公告)号：US09630942B2
公开(公告)日：2017-04-25
申请号：US14782627
申请日：2013-08-17
申请人： Nanjing University
发明人： Hong Li , Quanxing Zhang , Na Cheng , Tianrong Zhang , Wei Jiang , Wei Huang , Bingcai Pan
IPC分类号： C07D319/12 , B01J31/02
CPC分类号： C07D319/12 , B01J31/0208 , B01J31/0241 , B01J31/0271 , B01J2231/34
摘要： A technological method for synthesizing optically pure L-/D-lactide by using a biogenic guanidine catalysis method. The method of the present invention comprises: by using biogenic guanidine creatinine (CR) as a catalyst and L-/D-lactic acid (90% of mass content) as a raw material, synthesizing optically pure L-/D-lactide by using a reactive reduced pressure distillation catalysis method. The method of the present invention has advantages that the used catalyst is biogenic guanidine creatinine and free of toxicity, metal, and cytotoxicity; the synthesized lactide is high in optical purity (the specific rotation of the L-lactide [α]25D=−276˜−280, and the specific rotation of the D-lactide [α]25D=280), and does not contain any metal; the amount of the catalyst used in reaction is low, the technological process is simplified (a process for rectifying and purifying a crude lactide product by using a conventional method is avoided); and the technological method is simple and convenient to operate and easy in industrial implementation.

4. 发明申请

US20160039782A1 TECHNOLOGICAL METHOD FOR SYNTHESIS OF OPTICALLY PURE L-/D-LACTIDE CATALYZED BY BIOGENIC GUANIDINE 有权
标题翻译：用于生物活性剂催化的光学纯化的L- / D-乳酸的合成方法
公开(公告)号：US20160039782A1
公开(公告)日：2016-02-11
申请号：US14782627
申请日：2013-08-17
申请人： Nanjing University
发明人： Hong Li , Quanxing Zhang , Na Cheng , Tianrong Zhang , Wei Jiang , Wei Huang , Bingcai Pan
IPC分类号： C07D319/12 , B01J31/02
CPC分类号： C07D319/12 , B01J31/0208 , B01J31/0241 , B01J31/0271 , B01J2231/34
摘要： A technological method for synthesizing optically pure L-/D-lactide by using a biogenic guanidine catalysis method. The method of the present invention comprises: by using biogenic guanidine creatinine (CR) as a catalyst and L-/D-lactic acid (90% of mass content) as a raw material, synthesizing optically pure L-/D-lactide by using a reactive reduced pressure distillation catalysis method. The method of the present invention has advantages that the used catalyst is biogenic guanidine creatinine and free of toxicity, metal, and cytotoxicity; the synthesized lactide is high in optical purity (the specific rotation of the L-lactide [α]25 D=−276˜−280, and the specific rotation of the D-lactide [α]25 D=280), and does not contain any metal; the amount of the catalyst used in reaction is low, the technological process is simplified (a process for rectifying and purifying a crude lactide product by using a conventional method is avoided); and the technological method is simple and convenient to operate and easy in industrial implementation.
摘要翻译：通过生物胍胍催化方法合成光学纯的L- / D-丙交酯的技术方法。本发明的方法包括：以生物胍胍肌酐（CR）为催化剂和L- / D-乳酸（90质量％）为原料，通过使用光学纯的L- / D-丙交酯一种反应性减压蒸馏催化方法。本发明的方法具有以下优点：所用催化剂是生物胍胍肌酐，无毒性，金属和细胞毒性; 合成的丙交酯的光学纯度高（L-丙交酯的比旋光度[α] 25 D = -276〜-280，D-丙交酯[α] 25 D = 280的比旋光度），不含有任何金属; 反应中使用的催化剂的量低，简化了工艺过程（避免了通过常规方法对粗制丙交酯产物进行精馏和纯化的方法）; 技术方法操作简便，工业实施方便。

5. 发明授权

US11600788B2 Ternary polymer solar cell 有权
公开(公告)号：US11600788B2
公开(公告)日：2023-03-07
申请号：US17118114
申请日：2020-12-10
申请人： NANJING UNIVERSITY OF POSTS & TELECOMMUNICATIONS
发明人： Wenyong Lai , Jiandong Zhang , Bin Du , Wei Huang
IPC分类号： H01L51/42 , H01L51/00 , H01L51/44
摘要： The present invention discloses a ternary polymer solar cell. A photoactive layer of the ternary polymer solar cell includes two non-fullerene electron acceptors with large planarity. The weight percentage composition of the photoactive layer in the ternary polymer solar cell is: 41.6-50% of polymer electron donor, 0-50% of polymer electron acceptor, and 0-50% of non-fullerene perylene diimide (PDI) electron acceptor. The non-fullerene PDI electron acceptor is added into the photoactive layer to broaden the spectral absorption of the photoactive layer, improve the phase separation of the photoactive layer and inhibit the recombination of bimolecular charges, resulting in more efficient generation and transport of charges, thereby increasing a short-circuit current density of the ternary polymer solar cell device, and finally improving the power conversion efficiency of the ternary polymer solar cell device. Moreover, a new direction is provided for the selection of the all-polymer non-fullerene acceptor.

6. 发明授权

US11312717B2 Organic nano-grid, nano-polymer thereof and preparation method therefor 有权
公开(公告)号：US11312717B2
公开(公告)日：2022-04-26
申请号：US16766301
申请日：2018-01-26
申请人： NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
发明人： Linghai Xie , Wei Huang , Ying Wei , Dongqing Lin , Quanyou Feng , Hui Liu , Chunxiao Zhong
IPC分类号： C07D471/22 , C08G61/12 , B82Y30/00
摘要： The present invention provides an organic nano-grid, a nano-polymer thereof and a preparation method therefor. The organic nano-grid has a general formula (I), and the nano-polymer has a general formula (II), wherein R1 is an alkyl chain, R2 is halogen or an electroactive group, and X may comprise a heteroatom such as N, O and S, and n is a natural number from 1 to 10. A nano-connection strategy is applied to the construction of a one-dimensional nano-polymer. The polymer starts from a monomer A2B2 to form a corresponding nano-polymer by a Friedel-Crafts polymerization cyclization reaction.

7. 发明授权

US11158830B2 Perovskite film layer, device and preparation method for effectively improving efficiency of light-emitting device 有权
公开(公告)号：US11158830B2
公开(公告)日：2021-10-26
申请号：US16771230
申请日：2018-12-05
申请人： NANJING UNIVERSITY OF TECHNOLOGY
发明人： Jianpu Wang , Nana Wang , Yu Cao , Wei Huang
IPC分类号： H01L51/50 , H01L51/00 , H01L51/52 , H01L51/56
摘要： The disclosure discloses a perovskite film layer, a device and a preparation method for effectively improving the efficiency of perovskite optoelectronics. The perovskite film layer consists of a layer with discontinuous, irregularly distributed perovskite crystal grains and an organic insulating layer with a low refractive index embedded between the perovskite crystal grains. The perovskite crystal grains form a plurality of convex portions, and the organic insulating layer forms a plurality of concave portions between the convex portions. By adding an excess of an alkylammonium salt and/or an organic molecule with a specific functional group to perovskite precursor solution, a concave-convex film layer structure is spontaneously formed, and an upper charge transport layer and an electrode form pleated concave-convex structures. Such a special perovskite thin film structure formed by a simple solution method can effectively improve the light-outcoupling efficiency and enhance the performance of the perovskite light-emitting device.

8. 发明授权

US10570111B2 Method of purifying cyclic ester 有权
公开(公告)号：US10570111B2
公开(公告)日：2020-02-25
申请号：US16251047
申请日：2019-01-17
申请人： Nanjing University
发明人： Hong Li , Quanxing Zhang , Jiaye Sheng , Na Cheng , Wei Huang , Wei Jiang , Aimin Li
IPC分类号： C07D319/12
摘要： A method of purifying a cyclic ester, the method including: granulating a crude cyclic ester, an average particle size of resulting granules being 0.05-1.00 mm; adding the granules to 0-4° C. water to yield a mixture, a mass ratio of the water to the granules being (0.5-2):1; stirring the mixture, and performing solid-liquid separation on the mixture; repeating the stirring and solid-liquid separation for 1-4 times, to yield a purified cyclic ester; drying the purified cyclic ester at 0-4° C. and at an absolute pressure of less than or equal to 10 pascal for 4-6 hours, and continually drying the purified cyclic ester at 40-60° C. and at an absolute pressure of less than or equal to 5 pascal for 1-2 hours.

9. 发明授权

US11434324B2 Organic polyspirogrid nano polymer material and preparation method therefor 有权
公开(公告)号：US11434324B2
公开(公告)日：2022-09-06
申请号：US16758870
申请日：2018-07-13
申请人： NANJING UNIVERSITY OF POSTS & TELECOMMUNICATIONS
发明人： Linghai Xie , Lei Tang , Ying Wei , Wei Huang
IPC分类号： C08G61/02 , C07D495/20 , C07D495/22
摘要： The invention relates to an organic polyspiralgrid nanopolymer material and a preparation method thereof, and belongs to the field of nanotechnology and organic electronics. The structure of the organic polyspiralgrid nanopolymer material is composed of grids containing a spiro ring that serves as a repeat unit to form a special nano polymer, and the structure shares the spiro ring structure. A synthetic method thereof relates to a synthon containing the spiro ring, and by means of a Friedel-Crafts reaction, an organic spirogrid and a nano polymer thereof are built. By means of reasonable molecular design and the Friedel-Crafts reaction with the advantages of being mild in reaction condition, high in yield, high in selectivity, simple in posttreatment, green, free of toxicity and the like, the problems that a traditional polymer molecule is complex in synthesis step, toxic in posttreatment, large in pollution and the like are solved.

10. 发明申请

US20210403638A1 BLOCK COPOLYMER INTRINSIC STRETCHABLE ELECTROLUMINESCENT ELASTOMER AND PREPARATION METHOD AND APPLICATION THEREOF 有权
公开(公告)号：US20210403638A1
公开(公告)日：2021-12-30
申请号：US17133884
申请日：2020-12-24
申请人： Nanjing University of Posts and Telecommunications
发明人： Wen-Yong Lai , Wan Song , Xiangchun Li , Yu Yan , Wei Huang
IPC分类号： C08G61/02 , C09K11/06
摘要： The invention discloses a block copolymer intrinsic stretchable electroluminescent elastomer and its preparation method and application. This type of elastomer is made from organic electroluminescent monomers, styrene and 1,3-butadiene through anionic polymerization. The innovation of the present invention is: for the first time, the organic electroluminescence unit is introduced into the elastomer by chemical crosslinking. On the basis of improving the intrinsic stretchability of the elastomer, at the same time, it has characteristics of excellent luminescence and high carrier mobility, novel structure and unique design strategy; meanwhile, it also solves the inherent non-stretchability problem of traditional organic optoelectronic materials and the problem that traditional elastomers do not have electroluminescent properties. This type of elastomer is used as a light-emitting layer material to prepare organic electroluminescent devices with high stability, high stretchability and high efficiency.

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