公开(公告)号：US4871816A

公开(公告)日：1989-10-03

申请号：US111317

申请日：1987-10-22

申请人： Virgil Percec ,  Paul P. Nicholas ,  Dana Garcia

发明人： Virgil Percec ,  Paul P. Nicholas ,  Dana Garcia

IPC分类号： C08F299/00 ,  C08G65/40 ,  C08G65/48 ,  C08G81/00 ,  C08L71/00

CPC分类号： C08G81/00 ,  C08F299/00 ,  C08G65/40 ,  C08G65/4012 ,  C08G65/48 ,  C08L71/00 ,  C08L2205/05

摘要： Polyarylene polyethers ("PAPE") with vinyl chain ends may be crosslinked to form networks with excellent physical and chemical properties except they tend to be brittle. In particular, a polysulfone ("PSU" made from bisphenol A and dichlorodiphenyl sulfone) with vinylbenzyl chain ends ("di-VB-PSU") is too brittle for many applications where impact resistance is essential. This brittleness is combatted by inserting a thermally stable rubbery poly(dimethylsiloxane) ("PDMS") segment having a number average molecular weight in the range from about 600 to about 5000 connected to di-VB-PSU segments by hydrosilylation in the presence of a Pt catalyst, to form a thermoplastic linear predominantly triblock oligomer with vinylbenzyl chain ends which are thermally crosslinkable. When crosslinked, the network formed has improved impact resistance and toughness, with only a little loss in the upper glass transition temperature if the relative lengths of the PDMS and PAPE are such as to provide the desired degree of phase microincompatibility sufficient to improve toughness. The triblock may be blended with a polymer with which the triblock may be crosslinked upon curing. If the VB-PSU-PDMS-PSU-VB triblock is blended with di-VB-PSU the polyblend may be crosslinked to provide improved toughness.

摘要翻译： 具有乙烯基链末端的聚亚芳基聚醚（“PAPE”）可以交联以形成具有优异物理和化学性质的网络，除非它们易于脆化。 具体地说，具有乙烯基苄基链端（“di-VB-PSU”）的聚砜（“双酚A和二氯二苯基砜制备的”PSU“）对于耐冲击性至关重要的许多应用来说太脆了。 通过在存在下存在下通过氢化硅烷化插入数均分子量在约600至约5000的数均分子量的热稳定的橡胶状聚（二甲基硅氧烷）（“PDMS”）链段，来抵抗这种脆性。 Pt催化剂，以形成热塑性线性主要是三嵌段低聚物，其具有可热交联的乙烯基苄基链端。 当交联时，所形成的网络具有改进的抗冲击性和韧性，如果PDMS和PAPE的相对长度能够提供足以提高韧性的所需程度的相微相容性，则在上玻璃化转变温度中仅有一点损失。 三嵌段可以与固化时三嵌段可以交联的聚合物共混。 如果将VB-PSU-PDMS-PSU-VB三嵌段与二-VP-PSU混合，则可将该共混物交联以提供改善的韧性。

公开(公告)号：US4806617A

公开(公告)日：1989-02-21

申请号：US25544

申请日：1987-03-13

申请人： Virgil Percec ,  Paul P. Nicholas

发明人： Virgil Percec ,  Paul P. Nicholas

IPC分类号： C07C45/71 ,  C08G61/10 ,  C08G61/12 ,  C08G77/52 ,  C08G65/00

CPC分类号： C08G77/52 ,  C07C45/71 ,  C08G61/128

摘要： When two 4-naphthoxyphenyl moieties are connected through a polar linking group, Y, it does not interfere with an oxidation process which results in dehydrogenative polymerization to yield polyarylene polyether (PAPE) polymers having a weight average mol wt greater than 10,000. Homo- and copolymers having a repeating unit in which a 4,4'-di(1-naphthoxyphenyl) moiety is connected through its phenyl rings to a bivalent polar residue are described. A specific monomer is selected from the group consisting of 4,4'-di(1-naphthoxy)diphenyl sulfone (DNDPS, Y=SO.sub.2) and, 4,4'-di(1-naphthoxy)benzophenone (DNBP, Y=CO). Because the process provides thermoplastic PAPE polymers having a Tg in the range from about 250.degree. C. to about 350.degree. C. with excellent physical properties, the polymers are suitable for use in the fabrication of composites for aerospace vehicles subjected to elevated temperatures.

公开(公告)号：US20120308640A1

公开(公告)日：2012-12-06

申请号：US13388587

申请日：2010-08-05

申请人： Virgil Percec ,  Andrew D. Hughes ,  Pawaret Leowanawat ,  Daniela A. Wilson ,  Christopher J. Wilson

发明人： Virgil Percec ,  Andrew D. Hughes ,  Pawaret Leowanawat ,  Daniela A. Wilson ,  Christopher J. Wilson

IPC分类号： C07C69/78 ,  C07C69/708 ,  A61P35/00 ,  A61K9/127 ,  A61K9/133 ,  A61K31/704 ,  C07D493/10 ,  C07C215/50

CPC分类号： A61K31/74 ,  A61K49/0028

摘要： The invention concerns compounds of the formula: X—(Y)t wherein: X is Formula (X), each Y is the same or different and is Formula (Y) —O—[CH2—CH(OH)—CH2—O—]m—H; or —C(OR5)3; R1, R2, R3, R6, R7, R8, R9, R10 are each, independently, —(CH2CH2O)m—R4, —[CH2CH(OH)CH2O]nH, OR11, —O(CH2)PR13, or —(CH2)R12; each R4 is independently OR5 or OH; R5, R11 and R12 are each, independently, H or C1-C30 alkyl; R13 is —NH3+Cl− or —NHBoc; t is an integer from 2 to 6; m, n, and p are each, independently, an integer from 1 to 12; and each q, r, and s is 0 or 1 and the sum of q+r+s is at least 2.

摘要翻译： 本发明涉及下式的化合物：X-（Y）t其中：X为式（X），每个Y相同或不同，为式（Y）-O- [CH2-CH（OH）-CH2-O - ] m-H; 或-C（OR 5）3; R 1，R 2，R 3，R 6，R 7，R 8，R 9，R 10各自独立地为 - （CH 2 CH 2 O）m -R 4， - [CH 2 CH（OH）CH 2 O] nH，OR 11，-O（CH 2）PR 13或 - CH2）R12; 每个R 4独立地是OR 5或OH; R 5，R 11和R 12各自独立地为H或C 1 -C 30烷基; R 13是-NH 3 + Cl - 或-NHBoc; t为2〜6的整数; m，n和p各自独立地为1至12的整数; 并且每个q，r和s是0或1，并且q + r + s的和至少为2。

公开(公告)号：US20060088499A1

公开(公告)日：2006-04-27

申请号：US11171494

申请日：2005-07-01

申请人： Virgil Percec

发明人： Virgil Percec

IPC分类号： A61K38/04 ,  C08G63/91

CPC分类号： C07K5/06078 ,  A61K38/00 ,  Y10S424/16

摘要： An amphiphilic dendritic dipeptide, comprises a dipeptide(s) comprising one or more of a naturally occurring or synthetic amino acids and a dendron. These are suitable for use in various formulations, films, coatings, membranes and sensors, among other applications.

摘要翻译： 两亲性树突状二肽包含二肽，其包含天然存在的或合成的氨基酸和树突中的一种或多种。 这些适用于各种配方，膜，涂料，膜和传感器以及其他应用。

公开(公告)号：US06838535B2

公开(公告)日：2005-01-04

申请号：US09893201

申请日：2001-06-27

申请人： Virgil Percec ,  Alex Asandei

发明人： Virgil Percec ,  Alex Asandei

IPC分类号： C08F2/38 ,  C08F4/10 ,  C08F14/06 ,  C08F4/44 ,  C08F114/06 ,  C08F114/08

CPC分类号： C08F14/06 ,  C08F2/38

摘要： A process for the preparation of polyvinyl chloride (PVC) with controlled molecular weight and molecular weight distribution is disclosed. The polymerization reaction can be initiated by various organic halide initiators in conjunction with a metal catalyst and an optional ligand in organic solvents or water and in the presence of an optional comonomer. The polymerization process provides PVC with a controlled molecular weight and narrow molecular weight distribution. The chlorine containing polymers compositions are useful as, among others, viscosity modifiers, impact modifiers and compatibilizers.

公开(公告)号：US06733883B2

公开(公告)日：2004-05-11

申请号：US10291362

申请日：2002-11-12

申请人： Virgil Percec

发明人： Virgil Percec

IPC分类号： B32B516

CPC分类号： C09K19/32 ,  B82Y30/00 ,  C07C49/788 ,  C07C69/92 ,  C07C205/57 ,  C07C2603/18 ,  C07C2603/50 ,  C07D209/86 ,  C09K19/322 ,  C09K19/3477 ,  C09K2019/0407 ,  C09K2019/0418 ,  C09K2019/0429 ,  C09K2019/044 ,  C09K2019/328 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2995

摘要： This invention relates to novel fluorinated dendrons and to a universal strategy for producing functional fluorinated dendrons programmed to self-assemble into supramolecular nanocylinder compositions containing p-stacks of high electron or hole mobility donors (D), acceptors (A), or D-A complexes in the core. Such nanocylinder compositions are uniquely applicable to devices spanning from single supramolecule to nanoscopic and to macroscopic scales including transistors, photovoltaics, photoconductors, photorefractives, light emissives, and optoelectronics.

摘要翻译： 本发明涉及新颖的氟化树枝状突变体和用于制备功能性氟化树枝状突变体的通用方法，该方法被编程为自组装成超分子纳米瓶组合物，其含有高电子或空穴迁移供体（D），受体（A）或DA配合物的p-叠层 核心。 这种纳米圆柱体组合物独特地适用于从单个超分子到纳米尺度和宏观尺度的装置，包括晶体管，光伏，光电导体，光电折射，光辐射和光电子。

公开(公告)号：US4749756A

公开(公告)日：1988-06-07

申请号：US3740

申请日：1987-01-16

申请人： Virgil Percec

发明人： Virgil Percec

IPC分类号： C08G65/48 ,  C08G75/02 ,  C08G75/04 ,  C08L71/00 ,  C08L81/06 ,  C08F283/00 ,  C08L81/02

CPC分类号： C08L71/00 ,  C08G65/48 ,  C08G75/02 ,  C08G75/04 ,  C08L81/06 ,  C08L2205/05

摘要： A modified Williamson etherification in the presence of phase transfer catalyst is used to synthesize alternating block copolymers and regular copolymers. Unsaturated polyethers of a polynuclear dihydric phenol containing chloroallylic (electrophilic) end groups (prepared from cis- or trans-1,4-dichloro-2-butene and Bisphenol A) and aromatic poly(ether sulfone)s containing terminal phenol (nucleophilic) groups are polycondensed in the presence of tetrabutylammonium hydrogen sulfate as phase transfer catalyst to give alternating block copolymers. The same telechelic polymers were chain-extended with dinucleophilic or dielectrophilic monomers under similar reaction conditions. Both the regular copolymers and the alternating block copolymers were characterized by gel permeation chromatography and DSC.

摘要翻译： 在相转移催化剂存在下的改进的威廉姆森醚化被用于合成交替的嵌段共聚物和常规共聚物。 含有氯代（亲电子）端基（由顺式或反式-1,4-二氯-2-丁烯和双酚A制备）和含有末端苯酚（亲核）基团的芳族聚（醚砜））的多核二羟基苯酚的不饱和聚醚 在作为相转移催化剂的四丁基硫酸氢铵存在下缩聚得到交替的嵌段共聚物。 在类似的反应条件下，相同的遥爪聚合物用双亲或亲电子单体链延长。 通过凝胶渗透色谱和DSC表征常规共聚物和交替嵌段共聚物。

公开(公告)号：US4701514A

公开(公告)日：1987-10-20

申请号：US814747

申请日：1985-12-30

申请人： Virgil Percec

发明人： Virgil Percec

IPC分类号： C08G65/48 ,  C08G75/02 ,  C08G75/23

CPC分类号： C08G75/02 ,  C08G65/48

摘要： Oligomers of polyarylene polyethethers (PAPE) having a mol wt Mn in the range from 1000 to about 10,000 are converted to difunctionalized oligomers so as, in the first instance, to provide a reactive double bond (for example, a vinylbenzyl group) at each end of the PAPE; and, in the second instance, to provide a triple bond (benzylethynyl group) at each end of the PAPE. The PAPE most preferably has a repeating unit which is the residuum of two dihydric phenols or thiophenols ("DHP") linked through a C=O, --S--S--, or --SO.sub.2 -group, or a Si or C atom, and or ether O, or thioether S atoms. The preferred repeating unit is formed by reaction of a DHP such as bisphenol A (BPA) with a halogenated DHP such as dichlorophenyl sulfone (DCPS) so as to provide an alternating configuration. The repeating unit may also include a linking residue of a reactive solvent which residue provides chain extension in the backbone. An oligomer which is a homopolymer having a repeating unit in which at least four benzenoid rings are connected through ether O atoms, may also be difunctionalized. In particular, .alpha.,.omega.-di(phenol)aromatic polyether sulfone oligomers ("APS") are esterified so as to have terminal methacrylyl groups; and, etherified so as to have styryl end groups which are thermally crosslinkable. Illustrated are APS oligomers having BPA-DPS repeating units. The BPA moiety may be replaced with other diphenols. The synthesis of PAPE oligomers with terminal double bonds is carried out with a fast and quantitative modified Williamson etherification of the PAPE with an electrophilic haloalkyl reactant ("HAR") such as chloromethylstyrene ("CIMS") in the presence of a major molar amount (more than 50 mol% based on the number of moles of OH or SH groups originally present in the APS) of a phase transfer catalyst ("PTC") such as tetrabutylammonium hydrogen sulfate ("TBAH"). The vinyl groups at each end of the oligomer may then be converted to ethynyl groups by bromination of the DAPS in CH.sub.2 Cl.sub.2 or CHCl.sub.3, followed by dehydrobromination in the presence of potassium-tertbuoxide (K--t--Bu"). The glass transition temperature (T.sub.g) of the di(styrenated)APS after thermal curing is unexpectedly much higher than that of the APS from which it is derived.

公开(公告)号：US08450427B2

公开(公告)日：2013-05-28

申请号：US12376315

申请日：2007-08-03

申请人： Virgil Percec

发明人： Virgil Percec

IPC分类号： C08F4/44

CPC分类号： C08F4/00 ,  C08F2/38 ,  C08F4/10 ,  C08F4/40 ,  C08F12/08

摘要： The invention concerns a method of polymerizing an alkene monomer to produce a polymer using a catalyst that is Cu(O), Cu2Te, CuSe, Cu2S, Cu2O, or a combination thereof, an initiator, and a component comprising a solvent and optional nitrogen-containing ligand, where the combination of the component and monomer is capable of diproportionating Cu(I)X into Cu(O) and Cu(II)X2 where X is Cl, Br, or I.

摘要翻译： 本发明涉及使用Cu（O），Cu 2 Te，CuSe，Cu 2 S，Cu 2 O或其组合的引发剂，引发剂和包含溶剂和任选的氮气的组分聚合烯烃单体以制备聚合物的方法， 其中组分和单体的组合能够将Cu（I）X掺入Cu（O）和Cu（II）X2中，其中X是Cl，Br或I.

公开(公告)号：US07776971B2

公开(公告)日：2010-08-17

申请号：US10555599

申请日：2004-05-06

申请人： Virgil Percec

发明人： Virgil Percec

IPC分类号： C08F297/02 ,  C08F297/00 ,  C08F8/00

CPC分类号： C08F290/06 ,  C08F4/00 ,  C08F120/14 ,  C08F290/14 ,  C08F293/005 ,  C08G83/003

摘要： The inventive subject matter relates to novel synthetic processes which use a multifunctional compound (the “TERMINI compound”) having a masked or protected functional group, wherein the TERMINI compound is capable of quantitatively and irreversibly interrupting a living polymerization or a chain organic reaction. After deprotection or demasking of the functional group of the TERMINI compound, the same living polymerization or organic reaction resumes with 100% efficiency, or a different living polymerization or organic reaction resumes with 100% chemoselectivity, respectively. Once incorporated into a growing molecule, the TERMINI compound generates a branching point upon resumption of the polymerization or reaction.

摘要翻译： 本发明涉及使用具有掩蔽或保护的官能团的多官能化合物（“TERMINI化合物”）的新型合成方法，其中TERMINI化合物能够定量和不可逆地中断活性聚合或链状有机反应。 在TERMINI化合物的官能团脱保护或拆除后，相同的活性聚合反应或有机反应以100％的效率恢复，或者分别以100％的化学选择性恢复不同的活性聚合或有机反应。 一旦掺入生长分子中，TERMINI化合物在恢复聚合或反应时产生支化点。