Open Journal of Polymer Chemistry最新文献_第2页

Studying the Curing Conditions of Unsaturated Polyesters from Secondary Polyethylene Terephthalate Alcoholysis Products 二级聚对苯二甲酸乙二醇酯醇解产物不饱和聚酯固化条件的研究

Open Journal of Polymer Chemistry Pub Date : 2020-11-30 DOI: 10.4236/ojpchem.2020.104005

A. Juraev, Farhad A. Magrupov, M. Alimukhamedov, R. Adilov, M. M. Shokirova, Muqadam G. Ishmukhamedova

引用次数: 1

A Methodological Outlook on Bioplastics from Renewable Resources 再生资源生物塑料的方法论展望

Open Journal of Polymer Chemistry Pub Date : 2020-05-30 DOI: 10.4236/ojpchem.2020.102002

Jomin Thomas

引用次数: 10

Isolation of Nanocellulose from Cotton Cellulose and Computer Modeling of Its Structure 从棉花纤维素中分离纳米纤维素及其结构的计算机模拟

Open Journal of Polymer Chemistry Pub Date : 2019-11-05 DOI: 10.4236/ojpchem.2019.94010

A. Atakhanov, I. Turdikulov, Burhon Mamadiyorov, N. Abdullaeva, I. Nurgaliev, Yunusov Khaydar, S. Rashidova

{"title":"Isolation of Nanocellulose from Cotton Cellulose and Computer Modeling of Its Structure","authors":"A. Atakhanov, I. Turdikulov, Burhon Mamadiyorov, N. Abdullaeva, I. Nurgaliev, Yunusov Khaydar, S. Rashidova","doi":"10.4236/ojpchem.2019.94010","DOIUrl":"https://doi.org/10.4236/ojpchem.2019.94010","url":null,"abstract":"Nanocellulose is a new class of derivatives of cellulose, which is characterized by high crystallinity, surface area, degree of dispersion, ability to decomposition by microorganisms and etc. There is high attention solving problems of obtaining nanocellulose and its application as high quality filler for polymers, biodegradable materials, additives for papers, clotting dispersion and etc. Obtaining of particles of nanosized nanostructure on the base cellulose, studying of processes of their formation, properties and creation nanotechnology on this basis give the chance to obtain materials with unique properties. In this work nanocellulose was obtained from cotton cellulose by hydrolysis with sulfuric acid, ultrasonic dispersion and microwave irradiation. The properties and structure of nanocellulose are investigated by AFM, IR-spectroscopic, X-ray methods. Nanocellulose has rod-like shape with sizes 50 - 300 nm in length and 10 - 40 nm in diameters and spherical shape with sizes 50 - 300 nm depending on the synthesis conditions of obtaining. Quantum-chemical methods have been used to calculate the electronic characteristics of nanocellulose; the change in the energy difference between HOMO and LUMO is shown, showing the change in reactivity and the manifestation of specific properties.","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75716892","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

Chemical Modification of Nanocellulose in Wood Adhesive: Review 木材胶粘剂中纳米纤维素的化学改性研究进展

Open Journal of Polymer Chemistry Pub Date : 2019-11-01 DOI: 10.4236/ojpchem.2019.94008

S. Vineeth, Ravindra V. Gadhave, P. Gadekar

{"title":"Chemical Modification of Nanocellulose in Wood Adhesive: Review","authors":"S. Vineeth, Ravindra V. Gadhave, P. Gadekar","doi":"10.4236/ojpchem.2019.94008","DOIUrl":"https://doi.org/10.4236/ojpchem.2019.94008","url":null,"abstract":"Bio-based nanomaterial is more attractive, due to its abundance, eco-friendliness and sustainability, when compared to the non-renewable toxic petrochemicals used in the wood adhesive sector. Recent studies on the formaldehyde emission by petrochemical binders in wood adhesives have attracted scientists for the research in biomaterial-based binders. In this aspect nanocellulose (NC) is one such material which has reinforcing ability and has natural binding properties. Conventional wood adhesive uses petrochemical-based binders and additives. Inclusion of nanocellulose in wood adhesive could drastically reduce the dependency on non-renewable petroleum sources. Even though wood adhesive uses NC for improving mechanical properties of the adhesive, usage is restricted because of its inability to enhance tackiness and adhesion compared with petrochemicals. Availability of free hydroxyl groups and feasibility for modification can be a potential way for functionalization of this nanomaterial. To improve adhesion properties and to make nanocellulose act as a functional filler, the crosslinking approach can be a possible solution. Enhancement of thermal properties with improved thermal degradation, water barrier properties of crosslinked films and enhanced mechanical properties especially in crosslinked poly (vinyl alcohol) (PVA) matrix, which is one of the binders for wood adhesive discussed in this review paper proves the potential applicability of crosslinked NC. Hence by inclusion of NC in wood adhesive and crosslinking with the binder, both mechanical and performance properties are expected to enhance which will create a new world and possibilities for the bio-based eco-friendly wood adhesives. In this review paper, we have reviewed the crosslinking of nanocellulose to enhance the performance of wood adhesives.","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83255189","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: 31

Study of the Crosslinking of PVA with Glyoxal in LbL Nanocomposites 聚乙烯醇与乙二醛在LbL纳米复合材料中的交联研究

Open Journal of Polymer Chemistry Pub Date : 2019-10-17 DOI: 10.4236/ojpchem.2019.94009

Fatma Dhieb, Adrián García, S. H. Tabatabaei, F. Mighri, A. Ajji

引用次数: 1

Study on Various Compositions of Polyvinyl Alcohol and Starch Blends by Cross-Linking with Glyoxal 乙二醛交联聚乙烯醇与淀粉共混物的研究

Open Journal of Polymer Chemistry Pub Date : 2019-10-17 DOI: 10.4236/ojpchem.2019.94007

Ravindra V. Gadhave, P. Mahanwar, P. Gadekar

引用次数: 5

Nanocellulose Applications in Wood Adhesives—Review 纳米纤维素在木材胶粘剂中的应用综述

Open Journal of Polymer Chemistry Pub Date : 2019-10-17 DOI: 10.4236/ojpchem.2019.94006

S. Vineeth, Ravindra V. Gadhave, P. Gadekar

{"title":"Nanocellulose Applications in Wood Adhesives—Review","authors":"S. Vineeth, Ravindra V. Gadhave, P. Gadekar","doi":"10.4236/ojpchem.2019.94006","DOIUrl":"https://doi.org/10.4236/ojpchem.2019.94006","url":null,"abstract":"Bio-based \u0000materials open a new world of possibilities in every field due to its \u0000independence from the petrochemical origin. Moreover, concerns on environmental \u0000footprints and toxicity of synthetic adhesives made scientists investigate the utilization of biomaterials for wood \u0000adhesives. In this perspective, nanocellulose as a sustainable and cheap \u0000bio-nanomaterial provides a better alternative to conventional adhesive based on formaldehyde-containing condensation resins. Property of nanocellulose to act as both binders \u0000and as structural reinforcement in various adhesive systems adds to its \u0000potential. Besides by reducing the harmful emission of formaldehyde, it also can improve the \u0000mechanical properties and enhance performance of adhesives. This review paper \u0000aims to point out the potential application of nanocellulose based \u0000wood adhesives compared to petroleum-based conventional systems beyond \u0000renewability. New functionalities through structural modification in \u0000nanocellulose could bring a replacement with the synthetic adhesive systems \u0000which will play a significant role in future bio-economy.","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86761276","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: 30

Silane Modification of Starch-Based Wood Adhesive: Review 淀粉基木材胶粘剂的硅烷改性研究进展

Open Journal of Polymer Chemistry Pub Date : 2019-08-27 DOI: 10.4236/ojpchem.2019.93005

Ravindra V. Gadhave, Praneeta Sheety, P. Mahanwar, P. Gadekar, Bilvesh J. Desai

{"title":"Silane Modification of Starch-Based Wood Adhesive: Review","authors":"Ravindra V. Gadhave, Praneeta Sheety, P. Mahanwar, P. Gadekar, Bilvesh J. Desai","doi":"10.4236/ojpchem.2019.93005","DOIUrl":"https://doi.org/10.4236/ojpchem.2019.93005","url":null,"abstract":"Currently there has been a growing interest in substituting traditional \u0000synthetic polymers with biobased renewable polymers for adhesive applications. \u0000However, biobased renewable polymers such as starch suffer from few draw-backs \u0000like poor water resistance and mechanical strength. To become important potential \u0000alternatives of synthetic polymers, starch must have comparable physical, \u0000chemical, thermal and mechanical properties to that of synthetic polymers. To \u0000achieve this, starch has been modified by a series of crosslinkers like boric acid, citric acid, glyoxal, gluteraldehyde, etc. and silane modification. Silane modification by chloropropyl trimethoxysilane, γ-Methacryloxypropyl trimethoxy silane \u0000and vinyl trimethoxy silane is a suitable method to improve the performance in \u0000terms of mechanical and thermally. Silane forms covalent bonds with starch \u0000during starch modification resulted in enhanced shear strength and storage \u0000stability. A new research on \u0000biodegradable, renewable, environmentally friendly silane modification of \u0000starch-based wood adhesive that was prepared by \u0000reacting with various silanes. This paper, we reviewed silane as a modifying agent for starch-based wood adhesive.","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90551699","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: 15

Recycling and Disposal Methods for Polyurethane Wastes: A Review 聚氨酯废弃物回收与处理方法综述

Open Journal of Polymer Chemistry Pub Date : 2019-05-30 DOI: 10.4236/OJPCHEM.2019.92004

Ravindra V. Gadhave, S. Srivastava, P. Mahanwar, P. Gadekar

{"title":"Recycling and Disposal Methods for Polyurethane Wastes: A Review","authors":"Ravindra V. Gadhave, S. Srivastava, P. Mahanwar, P. Gadekar","doi":"10.4236/OJPCHEM.2019.92004","DOIUrl":"https://doi.org/10.4236/OJPCHEM.2019.92004","url":null,"abstract":"Polyurethanes (PU) are a general class of polymers prepared by the polyaddition of isocyanates and hydroxyl group containing compounds. PU foams are formed via the reaction of poly-isocyanate and multi-functional hydroxyl compounds resulting in urethane linkages. The foams are formed in wide range of densities and maybe flexible, semi-flexible or rigid in structure. To control the foam structure, blowing agents are employed. These agents are introduced during foam formation through volatilization of low-boiling liquids or through the formation of gas due to chemical reaction. Additionally, surfactants, catalysts, etc. are used during the manufacturing of foams. PU, including PU foams, is one of the most important groups of materials today and hence, their recycling has been of great interest. Many methods of recycling PU are available and many more are being studied further. However, no method has seen large scale commercialization or is brought into regular practice. The objective of this review is to bring to light the various technologies available and their current status of development as well as newer upcoming methods that may be available in the future.","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91189216","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: 25

Lignin: Renewable Raw Material for Adhesive 木质素:可再生粘合剂原料

Open Journal of Polymer Chemistry Pub Date : 2019-05-07 DOI: 10.4236/OJPCHEM.2019.92003

Ravindra V. Gadhave, S. Srivastava, P. Mahanwar, P. Gadekar

引用次数: 25