PPC is expected to achieve high performance and low cost processing_PTJ Blog

CNC Machining Services china

PPC is expected to achieve high performance and low cost processing


On the 9th, the magazine "Angewandte Chemie International Edition" published online the latest research result of the research team of Professor Xie Xiaolin of the School of Chemistry and Chemical Engineering "Oxygen-regulated one-pot synthesis of carbon dioxide-based block copolymers" Huazhong University of Science and Technology was the first One complete unit.

PPC is expected to achieve high performance and low cost processing

Carbon dioxide-based polycarbonate (PPC), which uses greenhouse gas CO2 as a cheap and renewable raw material, is degraded into CO2 and water under the action of microorganisms. It is an ideal green and sustainable cycle of "from the air to the air". Molecular materials. Due to its excellent water and oxygen barrier properties and biocompatibility, PPC, as an ideal substitute for petroleum-based polymer materials, can be widely used in fields such as agricultural mulch, packaging, and biomedical materials, providing a solution to the problem of plastic "white pollution" Effective Ways. However, compared with traditional petroleum-based polymer materials, PPC still has the problems of poor mechanical and thermal properties and high production costs. Therefore, the high-performance and low-cost processing of PPC has attracted much attention.

The research team synthesized a series of polyacrylate-b-PPC block copolymers by using carboxyl trithioester compounds as bifunctional chain transfer agents for carbon dioxide copolymerization (ROCOP) and reversible addition-fragmentation chain transfer polymerization (RAFT). (Angew. Chem. Int. Ed. 2018, 57, 3593-3597). Through continuous innovation and research, the team realized the intelligent conversion from controllable/living radical polymerization (CRP) to carbon dioxide copolymerization (ROCOP) by using oxygen as the molecular switch, and synthesized polyvinyl acetate-b-PPC block copolymer in one step. . The new block copolymer can be hydrolyzed under certain conditions and has the characteristics of full biodegradation. It is expected to be used as a compatibilizer for the blending and compounding of PPC with starch and cellulose to achieve high performance and low cost processing of PPC. The research work was funded by the National Key Research and Development Program (2016YFB0302400) and the National Natural Science Foundation of China Youth Project (21604027).

Link to this article: PPC is expected to achieve high performance and low cost processing

Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting:https://www.cncmachiningptj.com

cnc machining shopPTJ® provides a full range of Custom Precision cnc machining china services.ISO 9001:2015 &AS-9100 certified.
Machining shop specializing in fabrication services for construction and transportation industries. Capabilities include plasma and oxy-fuel cutting, Tailored machining, MIG and Custom Aluminum Cnc Precision Milling Welding Jig Fixture, roll forming, assembly, Lathe machining stainless steel cnc machine shaft, shearing, and CNC Swiss Machining services. Materials handled include carbon and Passivation Stainless Steel Machining Cover Plate Parts.
Tell us a little about your project’s budget and expected delivery time. We will strategize with you to provide the most cost-effective services to help you reach your target,You are welcome to contact us directly ( sales@pintejin.com ) .

Reply Within 24 Hours

Hotline:+86-769-88033280 E-mail: sales@pintejin.com

Please place file(s) for transfer in the same folder and ZIP or RAR before attaching. Larger attachments can take a few minutes to transfer depending on your local internet speed :) For attachments over 20MB, click  WeTransfer and send to sales@pintejin.com.

Once all fields are filled in you will be able to send your message/file :)