Study of the Polymerization of Methyl Methacrylate Initiated by Thioxanthone Derivatives: A Magnetic Field Effect

Sevnur KESKİN; Meral AYDIN; Igor KHUDYAKOV; Nergis ARSU

Makale detayları

Study of the Polymerization of Methyl Methacrylate Initiated by Thioxanthone Derivatives: A Magnetic Field Effect

Yazarlar:

Sevnur KESKİN | Meral AYDIN | Igor KHUDYAKOV | Nergis ARSU

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2009 Vol.33 Issue 2, pp.201-207

Belge Tipi:

Makale

Yayın Tarihi:

1/2009

Belge Dili:

Türkçe

Document ID (Org No.):

2000728315

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

Free radical photopolymerization of methyl methacrylate  (MMA) initiated by 2-mercaptothioxanthone (TX-SH),  thioxanthone-thioacetic acid (TXSCH2COOH), and  thioxanthone-carboxymethoxy acetic acid (TXOCH2COOH) as so called  one-component initiators was performed with and without an external  magnetic field (MF).  These initiators contain light-absorbing and  electron/hydrogen-donating fragments in one molecule and do not  require an additional hydrogen donor, and initiate the polymerization  of MMA in the air.  Polymerization experiments were performed in  solutions with 3 different optical densities at l 365 nm, where  the photoinitiator absorbs.  It was observed that application of MF  leads to both larger conversion and higher molecular weight of the  prepared PMMA, other conditions being equal.  The effect of MF on the  photopolymerization of MMA is discussed.

 

Free radical photopolymerization of methyl methacrylate  (MMA) initiated by 2-mercaptothioxanthone (TX-SH),  thioxanthone-thioacetic acid (TXSCH2COOH), and  thioxanthone-carboxymethoxy acetic acid (TXOCH2COOH) as so called  one-component initiators was performed with and without an external  magnetic field (MF).  These initiators contain light-absorbing and  electron/hydrogen-donating fragments in one molecule and do not  require an additional hydrogen donor, and initiate the polymerization  of MMA in the air.  Polymerization experiments were performed in  solutions with 3 different optical densities at l 365 nm, where  the photoinitiator absorbs.  It was observed that application of MF  leads to both larger conversion and higher molecular weight of the  prepared PMMA, other conditions being equal.  The effect of MF on the  photopolymerization of MMA is discussed.

Makale detayları

Study of the Polymerization of Methyl Methacrylate Initiated by Thioxanthone Derivatives: A Magnetic Field Effect

Yazarlar: Sevnur KESKİN | Meral AYDIN | Igor KHUDYAKOV | Nergis ARSU

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2009 Vol.33 Issue 2, pp.201-207

Belge Tipi: Makale

Yayın Tarihi: 1/2009

Belge Dili: Türkçe

Document ID (Org No.): 2000728315

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Sevnur KESKİN | Meral AYDIN | Igor KHUDYAKOV | Nergis ARSU

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2009 Vol.33 Issue 2, pp.201-207

Belge Tipi:

Makale

Yayın Tarihi:

1/2009

Belge Dili:

Türkçe

Document ID (Org No.):

2000728315

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527