公开(公告)号：US20230322989A1

公开(公告)日：2023-10-12

申请号：US18324548

申请日：2023-05-26

Applicant: President and Fellows of Harvard College

Inventor： Paul LE FLOCH ,  Xi YAO ,  Qihan LIU ,  Guodong NIAN ,  Canhui YANG ,  Zhigang SUO

IPC: C08F220/56 ,  C08G77/38

CPC classification number: C08F220/56 ,  D01F8/04 ,  C08G77/38

Abstract: A polymer composite of dissimilar polymers covalently bonded at the interface is disclosed. A method for bonding dissimilar polymers includes providing a first precursor to a hydrogel polymer network comprising a first coupling agent; providing a second precursor to a second polymer network comprising a second coupling agent, wherein the hydrogel polymer network and the second polymer network are different; initiating polymerization of the first precursor to form a hydrogel polymer network, wherein the first coupling agent is incorporated into the polymer network with a negligible amount of condensation; initiating polymerization of the second precursor to form a second polymer network, wherein the second coupling agent is incorporated into the second polymer network with a negligible amount of condensation; contacting one of the first hydrogel precursor or the hydrogel polymer network with one of the second polymer precursor or second polymer networks and initiating condensation between the first and second coupling agents to form a covalent bond.

公开(公告)号：US20180327608A1

公开(公告)日：2018-11-15

申请号：US15973193

申请日：2018-05-07

Applicant: President and Fellows of Harvard College

Inventor： Joanna AIZENBERG ,  Michael AIZENBERG ,  Jiaxi CUI ,  Stuart DUNN ,  Benjamin HATTON ,  Caitlin HOWELL ,  Philseok KIM ,  Tak Sing WONG ,  Xi YAO

IPC: C09D5/16 ,  C09D201/00 ,  A61L29/08 ,  C10M171/00 ,  C10M105/76 ,  B08B17/06 ,  B08B17/02 ,  B01D65/08

CPC classification number: C09D5/1637 ,  A61L29/085 ,  A61L29/14 ,  A61L31/04 ,  A61L31/049 ,  A61L31/06 ,  A61L31/14 ,  A61L2400/10 ,  B01D65/08 ,  B01D2321/00 ,  B05D5/08 ,  B08B17/025 ,  B08B17/065 ,  C08J2300/00 ,  C09D5/1675 ,  C09D5/1693 ,  C09D201/005 ,  C10M105/76 ,  C10M171/00 ,  C10M2203/1006 ,  C10M2229/025 ,  C10M2229/0515 ,  C10N2250/18 ,  C10N2270/00 ,  C08L83/04

Abstract: The present disclosure describes a strategy to create self-healing, slippery self-lubricating polymers. Lubricating liquids with affinities to polymers can be utilized to get absorbed within the polymer and form a lubricant layer (of the lubricating liquid) on the polymer. The lubricant layer can repel a wide range of materials, including simple and complex fluids (water, hydrocarbons, crude oil and bodily fluids), restore liquid-repellency after physical damage, and resist ice, microorganisms and insects adhesion. Some exemplary applications where self-lubricating polymers will be useful include energy-efficient, friction-reduction fluid handling and transportation, medical devices, anti-icing, optical sensing, and as self-cleaning, and anti-fouling materials operating in extreme environments.

公开(公告)号：US20200231728A1

公开(公告)日：2020-07-23

申请号：US16634039

申请日：2018-07-24

Applicant: President and Fellows of Harvard College

Inventor： Paul LE FLOCH ,  Xi YAO ,  Qihan LIU ,  Guodong NIAN ,  Canhui YANG ,  Zhigang SUO

IPC: C08F220/56 ,  C08G77/38

Abstract: A polymer composite of dissimilar polymers covalently bonded at the interface is disclosed. A method for bonding dissimilar polymers includes providing a first precursor to a hydrogel polymer network comprising a first coupling agent; providing a second precursor to a second polymer network comprising a second coupling agent, wherein the hydrogel polymer network and the second polymer network are different; initiating polymerization of the first precursor to form a hydrogel polymer network, wherein the first coupling agent is incorporated into the polymer network with a negligible amount of condensation; initiating polymerization of the second precursor to form a second polymer network, wherein the second coupling agent is incorporated into the second polymer network with a negligible amount of condensation; contacting one of the first hydrogel precursor or the hydrogel polymer network with one of the second polymer precursor or second polymer networks and initiating condensation between the first and second coupling agents to form a covalent bond.

公开(公告)号：US20140328999A1

公开(公告)日：2014-11-06

申请号：US14268171

申请日：2014-05-02

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Joanna AIZENBERG ,  Benjamin HATTON ,  Xi YAO ,  Michael AIZENBERG ,  Wendong WANG

IPC: C10M171/00 ,  B05D3/00 ,  A61F2/28 ,  B05D3/14 ,  B05D3/12 ,  B05D3/02 ,  F17D1/08 ,  B05D3/06

CPC classification number: C10M171/001 ,  A61F2/28 ,  A61F2240/001 ,  A61L15/425 ,  A61L15/50 ,  A61L27/50 ,  A61L27/56 ,  A61L29/14 ,  A61L29/146 ,  A61L2400/10 ,  A61L2400/16 ,  A61L2400/18 ,  A61M31/00 ,  B05D3/007 ,  B05D3/0254 ,  B05D3/06 ,  B05D3/12 ,  B05D3/14 ,  B05D3/207 ,  F17D1/08 ,  Y10T137/0324 ,  Y10T428/139 ,  Y10T428/24355

Abstract: The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces (SLIPS) that can be modified as desired. Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of objects, referred to herein as Object A (Solid A or Liquid A). Use of an external stimuli or degradation of the Liquid B can be utilized to change the characteristics of SLIPS structures reversibly or irreversibly that may be desired in a number of different applications. Numerous characteristics, such as adhesion, optical, mechanical, and the like, can be dynamically changed.

Abstract translation: 本公开描述了创建可以根据需要进行修改的自愈，滑滑液体注入的多孔表面（SLIPS）的策略。 粗化（例如，多孔）表面可以用于将本文称为液体B的润滑流体锁定在一起，以排斥在本文中称为对象A（固体A或液体A）的宽范围的物体。 可以利用外部刺激或液体B的降解来改变在许多不同应用中可能需要的可逆或不可逆的SLIPS结构的特征。 可以动态地改变许多特征，例如粘附，光学，机械等。