ACS polymers Au最新文献_第10页

Introducing the Tutorial Manuscript Type at the ACS Au Community Journals 介绍ACS Au社区期刊的教程稿件类型

IF 6.9

ACS polymers Au Pub Date : 2025-07-10 DOI: 10.1021/acspolymersau.5c00054

Squire J. Booker, Stephanie L. Brock, Xiangdong Li, Géraldine Masson, Sébastien Perrier, Vivek V. Ranade, Raymond E. Schaak, Gemma C. Solomon and Shelley D. Minteer*,

引用次数: 0

PVDF Nanofiber Membranes for Dissolved Methane Recovery from Water Prepared by Combining Electrospinning and Hot-Pressing Methods 静电纺丝与热压相结合制备用于水中溶解甲烷回收的PVDF纳米纤维膜

IF 6.9

ACS polymers Au Pub Date : 2025-06-19 DOI: 10.1021/acspolymersau.5c00021

Félix Montero-Rocca, Jose D. Badia-Valiente, Ramón Jiménez-Robles, Vicente Martínez-Soria and Marta Izquierdo*,

{"title":"PVDF Nanofiber Membranes for Dissolved Methane Recovery from Water Prepared by Combining Electrospinning and Hot-Pressing Methods","authors":"Félix Montero-Rocca, Jose D. Badia-Valiente, Ramón Jiménez-Robles, Vicente Martínez-Soria and Marta Izquierdo*, ","doi":"10.1021/acspolymersau.5c00021","DOIUrl":"https://doi.org/10.1021/acspolymersau.5c00021","url":null,"abstract":"Polyvinylidene fluoride (PVDF) electrospun nanofiber membranes (ENMs) could potentially be used in membrane contactors (MCs) for environmental applications, such as the removal of dissolved CH4 from anaerobic effluents. In this work, a PVDF flat-sheet ENM fabrication protocol, including the electrospinning processing and the subsequent hot-pressing treatment (HP), has been developed to produce hydrophobic membranes with suitable integrity and pore size distribution for gas–liquid separations in MCs. The HP study explored the effects of pressure (1, 10, and 20 MPa), temperature (25, 60, 80, and 120 °C), and time (2, 4, 6, and 10 min) on the morphological properties and hydrophobicity of the membranes. Our research revealed that fibers in the PVDF ENMs began to sinter at temperatures above 60 °C when hot-pressed between 1 and 20 MPa. ENM samples were prepared at different dope compositions (10–15% PVDF, 0.00–0.043% LiCl). After HP (≥1 MPa, ≥60 °C, and 6 min), the membrane thickness and water contact angle (WCA) decreased considerably, and lower pore sizes with narrower distributions were obtained. At higher pressure (10 MPa), a noticeable decrease in thickness (from 270 to 38 μm) and WCA (from 139 to 110°) was observed. Additionally, pore size distribution shifted toward a predominant narrow peak of around 0.40 μm. HP enhanced the uniformity of the PVDF crystalline structure without altering its overall crystallinity degree (40–42%). The HP ENM exhibited a comparable dissolved CH4 recovery performance to a commercial PVDF membrane and demonstrated sufficient mechanical integrity to endure operating conditions, maintaining a stable performance for at least 80 h.","PeriodicalId":72049,"journal":{"name":"ACS polymers Au","volume":"5 4","pages":"353–368"},"PeriodicalIF":6.9,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acspolymersau.5c00021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanoscale Structure–Property Relationships of Cyanate Ester as a Function of Extent of Cure 纳米级氰酸酯的结构-性能关系及其固化程度的函数

IF 6.9

ACS polymers Au Pub Date : 2025-06-16 DOI: 10.1021/acspolymersau.5c00022

Khatereh Kashmari, Josh Kemppainen, Sagar U. Patil, Julieta Barroeta Robles, Pascal Hubert and Gregory M. Odegard*,

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引用次数: 0

IF 4.7