Hakodate Conv. of JPI (51st Petroleum-Petrochemical Symposium of JPI)

Session information

Polymer, oligomer

[1F13-16] Polymer, oligomer(4)

Thu. Nov 11, 2021 3:00 PM - 4:00 PM Room-F (Stadio-B/Hakodate Areana)

Chair:Takeshi Shiono(Hiroshima Univ.)

3:00 PM - 3:15 PM

○Yuki Narita1, Yusuke Tanaka1, Miru Hirahara1, Hitoshi Ogihara1, Hideki Kurokawa1 (1. Graduate School of Science and Engineering, Saitama University)

Heterogeneous hybrid catalysts consisting of multiple complexes supported on cation-exchanged 2:1-type layered clay minerals were prepared and used for the slurry polymerization of ethylene. By ethylene polymerization using only this catalyst, a polyethylene blend containing both low and high molecular weight polyethylene was produced, which had a wide molecular weight distribution and excellent molding processability. Furthermore, the introduction of branches into the polymer chain was attempted by ethylene/1-hexene copolymerization.

3:15 PM - 3:30 PM

○Tomohiro Ikeda1, Toru Wada1, Patchanee Chammingkwan1, Toshiaki Taniike1 (1. Japan advanced institute of science and technology)

MgOナノ粒子をTiCl4で処理することで得られる触媒は成型加工に優れた超高分子量ポリエチレンを与えるが、微粒子であるが故に取扱いが難しい。本研究ではMgOナノ粒子をあらかじめスプレードライによって球状に成型することで、前述の触媒の利点を保ったまま取扱いに優れた二次凝集触媒を得た。球状のZiegler-Natta触媒においてこのようなボトムアップ式の調製は初めての例である。

3:30 PM - 3:45 PM

○Dongzhi Zhu1, Eiji Kurahashi2, Toru Wada1, Patchanee Chammingkwan1, Toshiaki Taniike1 (1. Japan Advanced Institute of Science and Technology, 2. Kojima Industries Corporation)

Polypropylene (PP), as one of the most representable commodity plastics, has been widely employed with a range of nanofillers to endow new functionalities. The main challenge in creating PP-based nanocomposites is to overcome the chemical inertness of PP, which leads to poor compatibility and weak interfacial bonding with the inorganic filler surfaces. Our group have reported the preparation of PP-OTMS, which is PP-based copolymer incorporating (7-octen-1-yl)trimethoxysilane (OTMS) as a comonomer with an amount of less than one comonomer unit per polymer chain using a Ziegler-Natta catalyst. To further improve the mechanical properties, trichlorosilanes with different alkyl chain lengths were exploited at different amounts for surface modification of SiO2 prior to melt mixing with PP-OTMS as a matrix.

3:45 PM - 4:00 PM

○Ryoji Makino1, Suphitchaya Kitphaitun1, KOTOHIRO NOMURA1 (1. Tokyo Metropolitan University)

最近、当研究室では、フェノキシ配位ハーフチタノセン触媒によるエチレンと水酸基を有するα-オレフィンとの共重合を報告している。この共重合における活性やモノマーの相対反応性は、使用するモノマーの水酸基とオレフィンとの間のメチレン鎖の影響を受けるはずである。本発表では、メチレン鎖長の異なる水酸基含有の各種α-オレフィン(3-ブテン-1-オールや5-ヘキセン-1-オールなど)とエチレンとの共重合を検討したので、その結果を紹介する。この共重合では、いずれのモノマーでも比較的効率よく水酸基の導入が可能になった。発表ではその詳細を報告する。
×

Authentication

Abstract password authentication.
Password is required to view the abstract. Please enter a password to authenticate.

×

Please log in with your participant account.
» Participant Log In