𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Study on the synthesis of poly(methyl methacrylate)–poly(methacrylic acid) composite latex and their humidity sensitive properties

✍ Scribed by Shih-Chang Hsu; Chia-Fen Lee; Wen-Yen Chiu

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
282 KB
Volume
71
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.

✦ Synopsis

The composite latex particles of poly(methyl methacrylate)-poly-(methacrylic acid) [poly(MMA-MAA)] were synthesized through either soapless seeded emulsion polymerization or a soapless emulsion copolymerization technique. The reaction kinetics, morphology, and size of latex particles, composition, glass transition temperature (T g ), and molecular weight of polymer products were studied under different experimental conditions. Moreover, this work also focused on the humiditysensitive properties of the polymer films fabricated by melting under the temperature of 200°C and followed by chemical modification with aqueous solution of NaOH. It is confirmed that there exists both an optimum ratio of hydrophilic to hydrophobic monomers and the initial structure of the latex particle to provide the humiditysensitive polyelectrolyte film with excellent water resistivity and good sensitivity to humidity. Besides, little hysteresis and quick response were observed.

📜 SIMILAR VOLUMES

Synthesis and properties of electrically
Synthesis and properties of electrically-sensitive poly(acrylic acid-co-acetoacetoxy ethyl methacrylate) gels
✍ Xiachao Jin; Hongmei Kang; Yongmin Huang; Honglai Liu; Ying Hu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 174 KB 👁 1 views

## Abstract A series of electric field sensitive copolymer P(AA‐__co__‐AAEM) gels of acrylic acid (AA) with acetoacetoxy ethyl methacrylate (AAEM) were prepared by free‐radical copolymerization, with __N,N′__‐methylene bisacrylamide (MBAAm) and ammounium persulfate (APS) as crosslinking agent and i

Study on the optical properties of sulfu
Study on the optical properties of sulfur-containing poly(methyl methacrylate)-inorganic hybrid
✍ Shujuan Liu; Liying Tian; Zhen Zheng; Xinling Wang 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 356 KB 👁 1 views

## Abstract High refractive index homogeneous hybrid materials were successfully prepared. The polymer matrix was the copolymer of methyl methacrylate, sulfur‐containing monomer 2,2′‐mercaptoethylsulfide dimethacrylate (MESDMA), and nanotitania was prepared by __in situ__ solgel process of titanium

Study on the properties, morphology, and
Study on the properties, morphology, and applications of castor oil polyurethane—poly(methyl methacrylate) IPNs
✍ Liucheng Zhang; Huilee Ding 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 330 KB 👁 1 views

A series of castor oil polyurethane-poly(methyl methacrylate) interpenetrating polymer networks (IPN COPU/PMMA) were produced from castor oil, toluene diisocyanate, and methyl methacrylate. The properties and morphology of the IPNs were estimated. The adhesives based on the IPN COPU/PMMA prepolymer