Contruction of "Crystalline" Heat Resistant Plastic Optical Fiber and Their Transparent Film with Excellent Light Conductivity

具有优良导光性的“结晶”耐热塑料光纤及其透明薄膜的制备

• 批准号: 20750171
• 负责人: FUJIMORI Atsuhiro
• 金额: $ 2.75万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20750171/
• 关键词: 繊維材料; 結晶性フッ素樹脂; プラスチック光ファイバー; 結晶性透明フィルム; 光伝送損失; 耐熱性; 広角X線回折; 小角X線散乱; 高温延伸; 電子密度差; ヘリング・ボーン構造

We developed a "crystalline" plastic optical fiber with excellent heat resistance and dimensional stability. For the practical use of this crystalline optical fiber in the near future, an accurate control of the solid-state structure is indispensable because of the necessity of reducing light refraction at the crystalline/amorphous interface. In the present study, changes in the fine structure and lamella arrangement upon drawing poly[tetrafluoroethylene-co-(perfluoroethylvinylether)] (abbrev. EFA) transparent crystalline fibers were investigated by using wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS) methods. The EFA was crystallized as a lamella crystal in the fibers and formed a thicker lamella (thickness : at least 27nm). This polymer might form a "switchboard-type" lamella. Upon the drawing of the EFA fibers, four-point SAXS diagrams developed in the photograph, which implied that a particular type of layer structure, an alternately tilted lamella arrangement known as the herringbone, was formed. Moreover, the previously proposed packing mode of general fluorinated polymers was required to be modified from quasi-hexagonal to orthorhombic in a reciprocal lattice in order to assign all reflective indexes.

我们开发了一种具有优异耐热性和尺寸稳定性的“结晶”塑料光纤。对于这种晶体光纤在不久的将来的实际应用，由于需要减少晶体/非晶界面处的光折射，因此对固态结构的精确控制是必不可少的。在本研究中，利用广角X射线衍射（WAXD）和小角X射线散射（SAXS）方法研究了聚[四氟乙烯-共聚（全氟乙基乙烯基醚）]（简称EFA）透明结晶纤维拉伸时精细结构和片层排列的变化。 EFA在纤维中结晶为片晶并形成较厚的片晶(厚度：至少27nm)。这种聚合物可能形成“配电盘型”薄片。在绘制 EFA 纤维后，照片中出现了四点 SAXS 图，这表明形成了一种特殊类型的层结构，即一种称为人字形的交替倾斜薄片排列。此外，之前提出的一般氟化聚合物的堆积模式需要从倒晶格中的准六方晶系修改为斜方晶系，以便分配所有反射指数。

项目成果

Layer structure estimation of three-dimensional crystal and two-dimensional molecular film for fluorinated comb copolymers

• DOI: 10.1002/polb.21387
• 发表时间: 2008-03
• 期刊: Journal of Polymer Science Part B
• 作者: A. Fujimori;Hiroko Hoshizawa;Satoshi Kobayashi;K. Kanai;Y. Ouchi;K. Seki

Fine Structure of Fluorinated Copolymer / Nono-filler Composites

氟化共聚物/无填料复合材料的精细结构

• 发表时间: 2010
• 期刊: Trans. Mater. Res. Soc. Jpn. 33(1)
• 作者: 早坂雄一郎;田村匡志;藤森厚裕
• 通讯作者: 藤森厚裕

Study of Molecular Arrangement and Surface Morphology of Organized Molecular Films of Charge-Transfer Complexes Containing Metal(dmit)2 Unit

含金属(dmit)2单元的电荷转移配合物有序分子膜的分子排列和表面形貌研究

• 发表时间: 2010
• 期刊: Trans. Mater. Res. Soc. Jpn. 35(印刷中)
• 作者: 板垣亮祐;帯刀陽子;藤森厚裕
• 通讯作者: 藤森厚裕

Surface Morphology and Molecular Arrangement of Organized Films of Poly-(N-alkylated benzamides)Containing Various Chain Lengths

不同链长聚N-烷基化苯甲酰胺有序薄膜的表面形貌和分子排列

• 发表时间: 2010
• 期刊: Trans.Mater.Res.Soc.Jpn. 35(in press)
• 作者: N.Sato;S.Chiba;Y.Abe;Y.Shibasaki;A.Fujimori
• 通讯作者: A.Fujimori

The departure of a self-supporting young researcher's ship.(独立助教の船出)

一艘自给自足的年轻研究员的船离开了。

• 发表时间: 2010
• 期刊: 高分子 59(2)
• 作者: J.Kusaka;R.Nomura;A.Fujimori;藤森厚裕;藤森厚裕
• 通讯作者: 藤森厚裕