公开(公告)号：US10427345B2

公开(公告)日：2019-10-01

申请号：US14700284

申请日：2015-04-30

Applicant: Massachusetts Institute of Technology

Inventor： Gang Chen ,  Jianjian Wang ,  Jonathan Kien-Kwok Tong ,  Hadi Ghasemi ,  Xiaopeng Huang ,  James Loomis ,  Yanfei Xu

IPC: B29C47/00 ,  C08J5/18 ,  B29C48/00 ,  C08K3/04 ,  H01B1/24 ,  C09K5/14 ,  B29C55/06 ,  B29C55/18 ,  B29C48/08 ,  B29C48/88 ,  B29L7/00 ,  D01F6/04 ,  D01F6/06 ,  B29K23/00 ,  B29C55/00

Abstract: Process for continuous fabrication of highly aligned polymer films. A polymer-solvent solution is subjected to a high shear, high temperature, Couette flow to extrude a thin film having polymer chain disentanglement. The extruded thin film is frozen and the solvent is allowed to evaporate to form a dried film. The dried film is mechanically drawn using a constant force, adaptive-thickness drawing system to align polymer molecular chains through plastic deformation. A suitable polymer is ultra-high molecular weight polyethylene.

公开(公告)号：US20190241785A1

公开(公告)日：2019-08-08

申请号：US16250717

申请日：2019-01-17

Applicant: Massachusetts Institute of Technology

Inventor： Gang Chen ,  Karen K. Gleason ,  Yanfei Xu ,  Xiaoxue Wang

IPC: C09K5/14 ,  C08G61/12 ,  C09D165/00 ,  H01L21/02

CPC classification number: C09K5/14 ,  C08G61/126 ,  C08G2261/11 ,  C08G2261/1414 ,  C08G2261/334 ,  C08G2261/43 ,  C09D165/00 ,  H01L21/02118 ,  H01L21/02271

Abstract: Disclosed are thermally conductive quinoid-type conjugated polymer thin films. One such film comprises conjugated poly(3-hexylthiophene) (P3HT). The thin films can be fabricated using oxidative chemical vapor deposition (oCVD), which offers unique advantages for integrating polymer films into various devices. By avoiding the use of solvents in the deposition of monomers and oxidants and undesirable solvent-derived surface-tension driven effects, such as dewetting, the oCVD coatings can conformally coat complex geometries, can be scaled to large areas, and can be fabricated at relatively low substrate temperatures on electrically insulating substrates. Disclosed is the formation of ordered polymer structures with rigid backbones achieved by oCVD with stacking in the transverse direction via π-π interactions. P3HT films with record-high thermal conductivity of 2.2 W/m-K near room temperature have been prepared.

公开(公告)号：US20150321408A1

公开(公告)日：2015-11-12

申请号：US14700284

申请日：2015-04-30

Applicant: Massachusetts Institute of Technology

Inventor： Gang Chen ,  Jianjian Wang ,  Jonathan Kien-Kwok Tong ,  Hadi Ghasemi ,  Xiaopeng Huang ,  James Loomis ,  Yanfei Xu

IPC: B29C47/00 ,  B29C71/02 ,  H01B1/24 ,  C09K5/14 ,  C08J5/18 ,  C08K3/04

CPC classification number: B29C48/0018 ,  B29C48/022 ,  B29C48/08 ,  B29C48/9135 ,  B29C48/914 ,  B29C55/005 ,  B29C55/06 ,  B29C55/18 ,  B29K2023/0683 ,  B29K2995/0005 ,  B29K2995/005 ,  B29K2995/0077 ,  B29L2007/008 ,  C08J5/18 ,  C08J2323/06 ,  C08K3/04 ,  C08K3/042 ,  C09K5/14 ,  D01F6/04 ,  D01F6/06 ,  D07B2205/201 ,  D07B2205/2014 ,  H01B1/24 ,  C08L23/06

Abstract: Process for continuous fabrication of highly aligned polymer films. A polymer-solvent solution is subjected to a high shear, high temperature, Couette flow to extrude a thin film having polymer chain disentanglement. The extruded thin film is frozen and the solvent is allowed to evaporate to form a dried film. The dried film is mechanically drawn using a constant force, adaptive-thickness drawing system to align polymer molecular chains through plastic deformation. A suitable polymer is ultra-high molecular weight polyethylene.

Abstract translation: 用于连续制造高度排列的聚合物膜的方法。 将聚合物 - 溶剂溶液经受高剪切，高温的Couette流，以挤出具有聚合物链解缠的薄膜。 将挤出的薄膜冷冻并使溶剂蒸发以形成干燥的膜。 使用恒定力自适应厚度拉伸系统机械拉伸干燥的膜，以通过塑性变形来调整聚合物分子链。 合适的聚合物是超高分子量聚乙烯。