A Novel Colorless Transparent PAN Produced by a Bulk Polymerization Process with Sulfinic Acid-Hydrogen Peroxide Initiator

2007 ◽  
Vol 16 (1) ◽  
pp. 43-52 ◽  
Author(s):  
Nehemia Shavit ◽  
Mordechai Konigsbuch
Keyword(s):  
Hydrogen Peroxide ◽  
Bulk Polymerization ◽  
Polymerization Process ◽  
Sulfinic Acid

scholarly journals Fuzzy control for continuous bulk polymerization process for polystyrene.

1991 ◽  
Vol 17 (1) ◽  
pp. 127-134
Author(s):  
Shigeru Hagimori ◽  
Chiaki Kuroda ◽  
Masaru Ishida
Keyword(s):  
Fuzzy Control ◽  
Bulk Polymerization ◽  
Polymerization Process

Designing and Operation of a Continuous Bulk Polymerization Process to Obtain Pure Polymers

1988 ◽  
Vol 2 (3-4) ◽  
pp. 198-203
Author(s):  
S. Omi ◽  
I. Iwata ◽  
K. Inubuse ◽  
M. Iso ◽  
M. Suka
Keyword(s):  
Bulk Polymerization ◽  
Polymerization Process

Effects of Modified Graphite on Thermal Properties of Modified Graphite/CA-MA/PMMA Composite for Latent Heat Thermal Energy Storage

2012 ◽  
Vol 562-564 ◽  
pp. 401-404
Author(s):  
Duo Meng
Keyword(s):  
Thermal Conductivity ◽  
Mechanical Test ◽  
Capric Acid ◽  
Bulk Polymerization ◽  
Polymerization Process ◽  
Transient Hot Wire ◽  
Hot Wire ◽  
Storage Performance ◽  
Wire Method ◽  
Absorbing Material

The aim of this work is to prepare a kind of polymer-based form-stable PCM with a higher thermal conductivity. Graphite powders modified by titanate coupling agent were chosen as the thermal conductivity enhancer. The modified graphite(MG) and capric acid(CA)-myristic acid(MA) eutectic as thermal absorbing material were blended into the poly-methyl methacrylate (PMMA) serving as supportive matrix during the bulk-polymerization process of MMA. The composite PCMs with different MG mass fraction (2%, 5%, 7%, 10% and 15%) were characterized by SEM, DSC technique, volume expansibility measurement and mechanical test. Thermal conductivities of the composites were measured by transient hot-wire method. The results indicate that the MG/CA-MA/PMMA composites keep the good thermal storage performance while the thermal expansibility becomes weaker. Thermal conductivity of the composite PCM has been enhanced significantly.

scholarly journals Preparation of environmentally friendly acrylic pressure-sensitive adhesives by bulk photopolymerization and their performance

RSC Advances ◽  
2020 ◽  
Vol 10 (17) ◽  
pp. 10277-10284 ◽  
Author(s):  
Menglu Zhu ◽  
Zhanshuo Cao ◽  
Haijun Zhou ◽  
Yijun Xie ◽  
Guohua Li ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Uv Irradiation ◽  
Butyl Acrylate ◽  
Environmentally Friendly ◽  
Bulk Polymerization ◽  
Polymerization Process ◽  
Pressure Sensitive Adhesives ◽  
Uv Crosslinking ◽  
Pressure Sensitive

Polyacrylic pressure-sensitive adhesives based on butyl acrylate, 2-hydroxyethyl acrylate, and acrylic acid were prepared by a bulk polymerization process triggered by a radical photoinitiator under UV irradiation and UV-crosslinking.

SIO2-Supported Metallocene Catalysts for Propene Polymerization: Electron Microscopic Studies and Tomographical Reconstructions of Polymer Growth

2000 ◽  
Vol 6 (S2) ◽  
pp. 1126-1127
Author(s):  
B. Steinmetz ◽  
B. Weimann ◽  
G. Fink ◽  
B. Tesche
Keyword(s):  
Bulk Polymerization ◽  
Polymerization Process ◽  
Metallocene Catalysts ◽  
Active Components ◽  
Electron Microscopic ◽  
Molecular Weight Distributions ◽  
Slurry Phase ◽  
Catalytically Active ◽  
Microscopic Studies ◽  
Kinetic Investigations

Summary:The polypropylene growth process on silica supported metallocene catalysts was examined by electron microscopy and kinetic investigations. It was possible to identify different polymerization stages with different characteristic kinetic data in the slurry phase which led to the development of a refined polymer growth model [1-2]. Tomographical reconstruction of shortly polymerized catalyst particles obtained by electron micrographs of serial microtome sections turned out to be a useful tool to achieve a better understanding of the heterogeneous polymerization process and the influence of the support structure on polymer growth.1. IntroductionSingle-site metallocene catalysts produce extremely uniform polymers with molecular weight distributions (MWD) of 2 or less and very narrow compositional distributions in comparison to conventional Ziegler-catalysts. For industrial gas phase or bulk polymerization in existing plants (drop-in-technology) it is necessary to fix the catalytically active components on a heterogeneous support.

Hot-melt pressure-sensitive adhesive for seamless bonding of nylon fabric part I: effect of a functional monomer

2018 ◽  
Vol 89 (6) ◽  
pp. 926-935 ◽  
Author(s):  
Chung-Feng Jeffrey Kuo ◽  
Jiong-Bo Chen ◽  
Pin-Hua Lin ◽  
Hui-Ting Yen
Keyword(s):  
Carboxylic Acid ◽  
Gel Permeation Chromatography ◽  
Peel Strength ◽  
Bulk Polymerization ◽  
Polymerization Process ◽  
Functional Monomer ◽  
Pressure Sensitive Adhesive ◽  
Pressure Sensitive ◽  
Hot Melt ◽  
Adhesive Performance

This study synthesized a series of prepolymers from butyl acrylate and functional monomer with various side-chain structures. A bulk polymerization process was then applied under ultraviolet irradiation. The molecular structure of the prepolymer was characterized by Fourier transform infrared spectroscopy and gel permeation chromatography. The degradation temperature and glass transition temperature ( Tg) were examined. The prepolymer was employed to the acrylic hot-melt pressure-sensitive adhesives (HMPSAs) and the corresponding adhesive performance was presented. In this study, glycidyl methacrylate was considered to be an effective cross-linking agent for acrylic HMPSAs containing carboxylic acid groups. The prepolymer containing carboxylic acid synthesized acrylic HMPSAs exhibited high adhesion in peel strength and shear strength compared to the hydroxyethyl group. The adhesive performance of HMPSAs in different environments was also investigated.

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