E-journal of Soft Materials最新文献

Thermal and Physical Properties of Polyurethanes Crosslinked by Polyrotaxanes—Influence of Polyrotaxane structures and Isocyanate Index— 聚轮烷交联聚氨酯的热物理性能——聚轮烷结构和异氰酸酯指数的影响

E-journal of Soft Materials Pub Date : 2022-01-01 DOI: 10.2324/ejsm.13.1

Juae Lim, Yoshimi Tanaka, H. Murakami

引用次数: 0

Evaluation on Cytotoxicity of Natural Rubber Latex Nanoparticles and Application in Bone Tissue Engineering 天然胶乳纳米颗粒细胞毒性评价及其在骨组织工程中的应用

E-journal of Soft Materials Pub Date : 2017-01-01 DOI: 10.2324/EJSM.12.1

M. Furuya, N. Shimono, K. Yamazaki, Ryota Domura, M. Okamoto

引用次数: 14

Particle Alignment Condition and Size Influence on the d 33 of the Pseudo-1-3 Piezoelectric Ceramic/Rubber Composite 伪1-3压电陶瓷/橡胶复合材料的颗粒取向条件及尺寸对d33的影响

E-journal of Soft Materials Pub Date : 2015-12-30 DOI: 10.2324/EJSM.11.1

Shogo Mamada, Naoyuki Yaguchi, M. Hansaka, M. Yamato, H. Yoshida

{"title":"Particle Alignment Condition and Size Influence on the d 33 of the Pseudo-1-3 Piezoelectric Ceramic/Rubber Composite","authors":"Shogo Mamada, Naoyuki Yaguchi, M. Hansaka, M. Yamato, H. Yoshida","doi":"10.2324/EJSM.11.1","DOIUrl":"https://doi.org/10.2324/EJSM.11.1","url":null,"abstract":"A piezoelectric ceramic/rubber composite comprising linearly aligned Lead Zirconate Titanate (PZT) particles as pillars in a silicon rubber matrix was fabricated. The optimum fabrication conditions of pseudo 1–3 composites (referred to as ‵‵aligned-type\" composites) were evaluated as the functions of the electric field strength and the piezoelectric particle size. The piezoelectric strain constant d33, which represents the value of the electric charge per unit force generated from a piezoelectric material, and the ratio of the number of particles involved in the alignments (RPIA) to all particles in an RPIA sample were used to quantitatively evaluate the composites. The d33 exhibited linear dependence on the piezoelectric particle size and a non-linear dependence on the RPIA. The RPIA depended on both the electric field strength and particle size. The electric field strength dependency of the RPIA exhibited a maximum at approximately 2 kV/mm. The optimum condition for the fabrication of the aligned-type piezoelectric rubber composite was achieved an electric field strength of 2.0 kV/mm with larger PZT particles.","PeriodicalId":11628,"journal":{"name":"E-journal of Soft Materials","volume":"12 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2015-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73473025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Synthesis and Characterization of Polyurethanes Crosslinked by Polyrotaxanes of Two Filling Ratios of α-Cyclodextrin and with Two Modification Ratios of Polyurethane Chain α-环糊精两种填充率和聚氨酯链两种改性率的聚轮烷交联聚氨酯的合成与表征

E-journal of Soft Materials Pub Date : 2014-12-30 DOI: 10.2324/EJSM.10.9

H. Murakami, T. Kondo, Rei Baba, Natsumi Nonaka

{"title":"Synthesis and Characterization of Polyurethanes Crosslinked by Polyrotaxanes of Two Filling Ratios of α-Cyclodextrin and with Two Modification Ratios of Polyurethane Chain","authors":"H. Murakami, T. Kondo, Rei Baba, Natsumi Nonaka","doi":"10.2324/EJSM.10.9","DOIUrl":"https://doi.org/10.2324/EJSM.10.9","url":null,"abstract":"Four polyurethanes (PUs) crosslinked by polyrotaxanes (PRXs) of two ﬁlling ratios of CyD (63% for PRX4000 and 37% for PRX6000) and with modiﬁcation ratios of 1 and 2 for a PU chain. The PUs were abbreviated as PU6000(1) , PU6000(2) , PU4000(1) , and PU4000(2) , in which 4000 and 6000 are the molecular weights of PEGs as an axle molecule of the PRX and the numbers in parentheses are the modiﬁcation ratios of the PU chain. ATR-FT-IR, DSC, viscoelastic measurements and tensile test were carried out to investigate their thermal and physical properties. The formation of hydrogen bonds between the PU chains increased with increase in the modiﬁcation ratio of the PU chain. PU4000(2) possessing the half ﬁlling ratio of CyD and higher modiﬁcation ratio of the PU chain made the recrystal lization of the soft segment slow. PU4000(1) with the half ﬁlling ratio of CyD and lower modiﬁcation ratio of the PU chain showed the highest tensile strength among the PUs. In contrast, PU6000(2) with the lower ﬁlling ratio of CyD and higher modiﬁcation ratio of the PU chain showed the highest elongation among the PUs, implying that the sliding effect based on the rotaxane structure occurred.","PeriodicalId":11628,"journal":{"name":"E-journal of Soft Materials","volume":"89 1","pages":"9-15"},"PeriodicalIF":0.0,"publicationDate":"2014-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79392081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nylon 66 Nanofiber Sheets Prepared by Carbon Dioxide Laser Supersonic Multi-drawing 二氧化碳激光超声复合拉伸法制备尼龙66纳米纤维片材

E-journal of Soft Materials Pub Date : 2014-12-30 DOI: 10.2324/EJSM.10.1

T. Hasegawa, Takumi Mikuni, A. Suzuki

引用次数: 0

Nano-Ordered Sea-Island Phase Separation of Ion-Conductive Elastomer Blends Based on NBR and Polyether Electrolytes 基于丁腈橡胶和聚醚电解质的离子导电弹性体共混物的纳米有序海岛相分离

E-journal of Soft Materials Pub Date : 2013-12-30 DOI: 10.2324/EJSM.9.9

Y. Kubota, Y. Tominaga

{"title":"Nano-Ordered Sea-Island Phase Separation of Ion-Conductive Elastomer Blends Based on NBR and Polyether Electrolytes","authors":"Y. Kubota, Y. Tominaga","doi":"10.2324/EJSM.9.9","DOIUrl":"https://doi.org/10.2324/EJSM.9.9","url":null,"abstract":"To create novel antistatic polymer materials, we prepared ion-conductive elastomer blends consisting of commercial NBR (with acrylonitrile (AN) content of 18 and 33% (NBR18, NBR33)) with nano-ordered domains of polyether electrolyte. In this study, we prepared blend samples using two different methods, solvent-casting and mechanical mixing methods. The oligo-[(ethylene oxide)-co-(propylene oxide)] methacrylate (M(EO/PO)) was mixed and polymerized in the NBR matrix including KSCN. Obtained elastomer blends showed relatively good conductivity more than 10−7 S cm−1 and the difference in the conductivity of the cast samples under dry and wet conditions was especially very small, and the ratio of conductivity under dry and wet condition of NBR18 blends was lower than 0.06. The TEM images indicated that the order of sea-island phase separation in blend samples may effect on the ion-conductive behavior under different humidity conditions. Moreover, the NBR33 with 30 wt% of PM(EO/PO) sample showed the conductivity of the order of 10−6 S cm−1, and we considered that the large interface between NBR33 and polyether electrolyte domains may effect the increase in the conductivity.","PeriodicalId":11628,"journal":{"name":"E-journal of Soft Materials","volume":"2007 1","pages":"9-13"},"PeriodicalIF":0.0,"publicationDate":"2013-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82579067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Anionic polymerization of 2-(N,N-bistrimethylsilylaminomethyl)-1,3-butadiene and 2-(4-(N,N-bistrimethylsilylamino)butyl)-1,3-butadiene 阴离子聚合2-(N,N-双strimethylsilylaminomethyl)-1,3-丁二烯和2-(4-(N,N-双strimethylsilylamino)丁基)-1,3-丁二烯

E-journal of Soft Materials Pub Date : 2013-12-30 DOI: 10.2324/EJSM.9.14

K. Takenaka, Daiki Nakashima, M. Miya, Hiroki Takeshita, T. Shiomi

引用次数: 4

Free-radical polymerization of tetraethyl (2,3-dimethylenebutane-1,4-diyl)bis(phosphonate) 四乙基(2,3-二亚甲基丁烷-1,4-二基)双膦酸盐的自由基聚合

E-journal of Soft Materials Pub Date : 2013-12-30 DOI: 10.2324/EJSM.9.1

K. Takenaka, Mayumi Arimoto, Hiroki Takeshita, M. Miya, T. Shiomi

引用次数: 0

Experimental Study on the Curing Process of Styrene-Butadiene-Rubber 丁苯橡胶固化工艺的实验研究

E-journal of Soft Materials Pub Date : 2012-12-30 DOI: 10.2324/EJSM.8.1

H. Tsuji, S. Nozu, H. Miura, Kenji Onishi