کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4753832 1417594 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nano-structured polymeric microparticles produced via cationic aerosol photopolymerization
ترجمه فارسی عنوان
میکروارگانیسم های پلیمری نانو ساختار حاصل از فتوپلیمرسیون کاتیونی آئروسل تولید می شود
کلمات کلیدی
آئروسل، اشعه ماوراء بنفش، پلیمریزاسیون کاتیونی، نانوساختار میکروکاستارهای پلیمری، تحویل مواد مخدر،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی


- Photo-curing of monomer in an aerosol stream.
- Controlled phase separation in the droplet in order to get nano-structured particles.
- Chain transfer agent to aid the structuring process.

Microparticles with non-full structures are interesting in many applications. In their production, however, issues related to purification are common. To overcome these issues, in this study a continuous polymerization process was developed in order to obtain powdered, nano-structured microparticles using neither surfactants nor a liquid medium.More specifically, a photo-induced cationic polymerization in aerosol was applied. A monomer solution was sprayed and irradiated with UV-light. During the reactor passage, both polymerization and phase separation occurred inside the single droplet. By adjusting the solvents amounts and ratios, different structures could be realized. Nano-structured particles with tunable pore shapes and dimensions were obtained. Capsule-like structures were obtained with the addition of a co-solvent able to get involved in the polymerization.An active ingredient was encapsulated within the particles. Results showed that the addition of the active ingredient did not affect the synthesis; furthermore, the particles structure had an impact on the release kinetics.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 346, 1 September 2017, Pages 364-371
نویسندگان
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